joy/android_kernel_sony_sdm845
Watch
1
Fork
You've already forked android_kernel_sony_sdm845
 0
Code Issues Pull requests Projects Releases Wiki Activity

drm/etnaviv: add initial etnaviv DRM driver

Browse source 
This adds the etnaviv DRM driver and hooks it up in Makefiles
and Kconfig.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
The etnaviv authors 2015-12-03 18:21:29 +01:00 • committed by Lucas Stach
commit a8c21a5451
27 changed files with 7238 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/gpu/drm/Kconfig
View file

@ -266,3 +266,5 @@ source "drivers/gpu/drm/amd/amdkfd/Kconfig"
source "drivers/gpu/drm/imx/Kconfig"
source "drivers/gpu/drm/vc4/Kconfig"
source "drivers/gpu/drm/etnaviv/Kconfig"

1
drivers/gpu/drm/Makefile
View file

@ -75,3 +75,4 @@ obj-y += i2c/
obj-y += panel/
obj-y += bridge/
obj-$(CONFIG_DRM_FSL_DCU) += fsl-dcu/
obj-$(CONFIG_DRM_ETNAVIV) += etnaviv/

20
drivers/gpu/drm/etnaviv/Kconfig Normal file
View file

@ -0,0 +1,20 @@
config DRM_ETNAVIV
tristate "ETNAVIV (DRM support for Vivante GPU IP cores)"
depends on DRM
depends on ARCH_MXC || ARCH_DOVE
select SHMEM
select TMPFS
select IOMMU_API
select IOMMU_SUPPORT
select WANT_DEV_COREDUMP
help
DRM driver for Vivante GPUs.
config DRM_ETNAVIV_REGISTER_LOGGING
bool "enable ETNAVIV register logging"
depends on DRM_ETNAVIV
help
Compile in support for logging register reads/writes in a format
that can be parsed by envytools demsm tool. If enabled, register
logging can be switched on via etnaviv.reglog=y module param.

14
drivers/gpu/drm/etnaviv/Makefile Normal file
View file

@ -0,0 +1,14 @@
etnaviv-y := \
etnaviv_buffer.o \
etnaviv_cmd_parser.o \
etnaviv_drv.o \
etnaviv_dump.o \
etnaviv_gem_prime.o \
etnaviv_gem_submit.o \
etnaviv_gem.o \
etnaviv_gpu.o \
etnaviv_iommu_v2.o \
etnaviv_iommu.o \
etnaviv_mmu.o
obj-$(CONFIG_DRM_ETNAVIV) += etnaviv.o

218
drivers/gpu/drm/etnaviv/cmdstream.xml.h Normal file
View file

@ -0,0 +1,218 @@
#ifndef CMDSTREAM_XML
#define CMDSTREAM_XML
/* Autogenerated file, DO NOT EDIT manually!
This file was generated by the rules-ng-ng headergen tool in this git repository:
http://0x04.net/cgit/index.cgi/rules-ng-ng
git clone git://0x04.net/rules-ng-ng
The rules-ng-ng source files this header was generated from are:
- cmdstream.xml ( 12589 bytes, from 2014-02-17 14:57:56)
- common.xml ( 18437 bytes, from 2015-03-25 11:27:41)
Copyright (C) 2014
*/
#define FE_OPCODE_LOAD_STATE 0x00000001
#define FE_OPCODE_END 0x00000002
#define FE_OPCODE_NOP 0x00000003
#define FE_OPCODE_DRAW_2D 0x00000004
#define FE_OPCODE_DRAW_PRIMITIVES 0x00000005
#define FE_OPCODE_DRAW_INDEXED_PRIMITIVES 0x00000006
#define FE_OPCODE_WAIT 0x00000007
#define FE_OPCODE_LINK 0x00000008
#define FE_OPCODE_STALL 0x00000009
#define FE_OPCODE_CALL 0x0000000a
#define FE_OPCODE_RETURN 0x0000000b
#define FE_OPCODE_CHIP_SELECT 0x0000000d
#define PRIMITIVE_TYPE_POINTS 0x00000001
#define PRIMITIVE_TYPE_LINES 0x00000002
#define PRIMITIVE_TYPE_LINE_STRIP 0x00000003
#define PRIMITIVE_TYPE_TRIANGLES 0x00000004
#define PRIMITIVE_TYPE_TRIANGLE_STRIP 0x00000005
#define PRIMITIVE_TYPE_TRIANGLE_FAN 0x00000006
#define PRIMITIVE_TYPE_LINE_LOOP 0x00000007
#define PRIMITIVE_TYPE_QUADS 0x00000008
#define VIV_FE_LOAD_STATE 0x00000000
#define VIV_FE_LOAD_STATE_HEADER 0x00000000
#define VIV_FE_LOAD_STATE_HEADER_OP__MASK 0xf8000000
#define VIV_FE_LOAD_STATE_HEADER_OP__SHIFT 27
#define VIV_FE_LOAD_STATE_HEADER_OP_LOAD_STATE 0x08000000
#define VIV_FE_LOAD_STATE_HEADER_FIXP 0x04000000
#define VIV_FE_LOAD_STATE_HEADER_COUNT__MASK 0x03ff0000
#define VIV_FE_LOAD_STATE_HEADER_COUNT__SHIFT 16
#define VIV_FE_LOAD_STATE_HEADER_COUNT(x) (((x) << VIV_FE_LOAD_STATE_HEADER_COUNT__SHIFT) & VIV_FE_LOAD_STATE_HEADER_COUNT__MASK)
#define VIV_FE_LOAD_STATE_HEADER_OFFSET__MASK 0x0000ffff
#define VIV_FE_LOAD_STATE_HEADER_OFFSET__SHIFT 0
#define VIV_FE_LOAD_STATE_HEADER_OFFSET(x) (((x) << VIV_FE_LOAD_STATE_HEADER_OFFSET__SHIFT) & VIV_FE_LOAD_STATE_HEADER_OFFSET__MASK)
#define VIV_FE_LOAD_STATE_HEADER_OFFSET__SHR 2
#define VIV_FE_END 0x00000000
#define VIV_FE_END_HEADER 0x00000000
#define VIV_FE_END_HEADER_EVENT_ID__MASK 0x0000001f
#define VIV_FE_END_HEADER_EVENT_ID__SHIFT 0
#define VIV_FE_END_HEADER_EVENT_ID(x) (((x) << VIV_FE_END_HEADER_EVENT_ID__SHIFT) & VIV_FE_END_HEADER_EVENT_ID__MASK)
#define VIV_FE_END_HEADER_EVENT_ENABLE 0x00000100
#define VIV_FE_END_HEADER_OP__MASK 0xf8000000
#define VIV_FE_END_HEADER_OP__SHIFT 27
#define VIV_FE_END_HEADER_OP_END 0x10000000
#define VIV_FE_NOP 0x00000000
#define VIV_FE_NOP_HEADER 0x00000000
#define VIV_FE_NOP_HEADER_OP__MASK 0xf8000000
#define VIV_FE_NOP_HEADER_OP__SHIFT 27
#define VIV_FE_NOP_HEADER_OP_NOP 0x18000000
#define VIV_FE_DRAW_2D 0x00000000
#define VIV_FE_DRAW_2D_HEADER 0x00000000
#define VIV_FE_DRAW_2D_HEADER_COUNT__MASK 0x0000ff00
#define VIV_FE_DRAW_2D_HEADER_COUNT__SHIFT 8
#define VIV_FE_DRAW_2D_HEADER_COUNT(x) (((x) << VIV_FE_DRAW_2D_HEADER_COUNT__SHIFT) & VIV_FE_DRAW_2D_HEADER_COUNT__MASK)
#define VIV_FE_DRAW_2D_HEADER_DATA_COUNT__MASK 0x07ff0000
#define VIV_FE_DRAW_2D_HEADER_DATA_COUNT__SHIFT 16
#define VIV_FE_DRAW_2D_HEADER_DATA_COUNT(x) (((x) << VIV_FE_DRAW_2D_HEADER_DATA_COUNT__SHIFT) & VIV_FE_DRAW_2D_HEADER_DATA_COUNT__MASK)
#define VIV_FE_DRAW_2D_HEADER_OP__MASK 0xf8000000
#define VIV_FE_DRAW_2D_HEADER_OP__SHIFT 27
#define VIV_FE_DRAW_2D_HEADER_OP_DRAW_2D 0x20000000
#define VIV_FE_DRAW_2D_TOP_LEFT 0x00000008
#define VIV_FE_DRAW_2D_TOP_LEFT_X__MASK 0x0000ffff
#define VIV_FE_DRAW_2D_TOP_LEFT_X__SHIFT 0
#define VIV_FE_DRAW_2D_TOP_LEFT_X(x) (((x) << VIV_FE_DRAW_2D_TOP_LEFT_X__SHIFT) & VIV_FE_DRAW_2D_TOP_LEFT_X__MASK)
#define VIV_FE_DRAW_2D_TOP_LEFT_Y__MASK 0xffff0000
#define VIV_FE_DRAW_2D_TOP_LEFT_Y__SHIFT 16
#define VIV_FE_DRAW_2D_TOP_LEFT_Y(x) (((x) << VIV_FE_DRAW_2D_TOP_LEFT_Y__SHIFT) & VIV_FE_DRAW_2D_TOP_LEFT_Y__MASK)
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT 0x0000000c
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT_X__MASK 0x0000ffff
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT_X__SHIFT 0
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT_X(x) (((x) << VIV_FE_DRAW_2D_BOTTOM_RIGHT_X__SHIFT) & VIV_FE_DRAW_2D_BOTTOM_RIGHT_X__MASK)
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT_Y__MASK 0xffff0000
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT_Y__SHIFT 16
#define VIV_FE_DRAW_2D_BOTTOM_RIGHT_Y(x) (((x) << VIV_FE_DRAW_2D_BOTTOM_RIGHT_Y__SHIFT) & VIV_FE_DRAW_2D_BOTTOM_RIGHT_Y__MASK)
#define VIV_FE_DRAW_PRIMITIVES 0x00000000
#define VIV_FE_DRAW_PRIMITIVES_HEADER 0x00000000
#define VIV_FE_DRAW_PRIMITIVES_HEADER_OP__MASK 0xf8000000
#define VIV_FE_DRAW_PRIMITIVES_HEADER_OP__SHIFT 27
#define VIV_FE_DRAW_PRIMITIVES_HEADER_OP_DRAW_PRIMITIVES 0x28000000
#define VIV_FE_DRAW_PRIMITIVES_COMMAND 0x00000004
#define VIV_FE_DRAW_PRIMITIVES_COMMAND_TYPE__MASK 0x000000ff
#define VIV_FE_DRAW_PRIMITIVES_COMMAND_TYPE__SHIFT 0
#define VIV_FE_DRAW_PRIMITIVES_COMMAND_TYPE(x) (((x) << VIV_FE_DRAW_PRIMITIVES_COMMAND_TYPE__SHIFT) & VIV_FE_DRAW_PRIMITIVES_COMMAND_TYPE__MASK)
#define VIV_FE_DRAW_PRIMITIVES_START 0x00000008
#define VIV_FE_DRAW_PRIMITIVES_COUNT 0x0000000c
#define VIV_FE_DRAW_INDEXED_PRIMITIVES 0x00000000
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_HEADER 0x00000000
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_HEADER_OP__MASK 0xf8000000
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_HEADER_OP__SHIFT 27
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_HEADER_OP_DRAW_INDEXED_PRIMITIVES 0x30000000
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_COMMAND 0x00000004
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_COMMAND_TYPE__MASK 0x000000ff
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_COMMAND_TYPE__SHIFT 0
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_COMMAND_TYPE(x) (((x) << VIV_FE_DRAW_INDEXED_PRIMITIVES_COMMAND_TYPE__SHIFT) & VIV_FE_DRAW_INDEXED_PRIMITIVES_COMMAND_TYPE__MASK)
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_START 0x00000008
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_COUNT 0x0000000c
#define VIV_FE_DRAW_INDEXED_PRIMITIVES_OFFSET 0x00000010
#define VIV_FE_WAIT 0x00000000
#define VIV_FE_WAIT_HEADER 0x00000000
#define VIV_FE_WAIT_HEADER_DELAY__MASK 0x0000ffff
#define VIV_FE_WAIT_HEADER_DELAY__SHIFT 0
#define VIV_FE_WAIT_HEADER_DELAY(x) (((x) << VIV_FE_WAIT_HEADER_DELAY__SHIFT) & VIV_FE_WAIT_HEADER_DELAY__MASK)
#define VIV_FE_WAIT_HEADER_OP__MASK 0xf8000000
#define VIV_FE_WAIT_HEADER_OP__SHIFT 27
#define VIV_FE_WAIT_HEADER_OP_WAIT 0x38000000
#define VIV_FE_LINK 0x00000000
#define VIV_FE_LINK_HEADER 0x00000000
#define VIV_FE_LINK_HEADER_PREFETCH__MASK 0x0000ffff
#define VIV_FE_LINK_HEADER_PREFETCH__SHIFT 0
#define VIV_FE_LINK_HEADER_PREFETCH(x) (((x) << VIV_FE_LINK_HEADER_PREFETCH__SHIFT) & VIV_FE_LINK_HEADER_PREFETCH__MASK)
#define VIV_FE_LINK_HEADER_OP__MASK 0xf8000000
#define VIV_FE_LINK_HEADER_OP__SHIFT 27
#define VIV_FE_LINK_HEADER_OP_LINK 0x40000000
#define VIV_FE_LINK_ADDRESS 0x00000004
#define VIV_FE_STALL 0x00000000
#define VIV_FE_STALL_HEADER 0x00000000
#define VIV_FE_STALL_HEADER_OP__MASK 0xf8000000
#define VIV_FE_STALL_HEADER_OP__SHIFT 27
#define VIV_FE_STALL_HEADER_OP_STALL 0x48000000
#define VIV_FE_STALL_TOKEN 0x00000004
#define VIV_FE_STALL_TOKEN_FROM__MASK 0x0000001f
#define VIV_FE_STALL_TOKEN_FROM__SHIFT 0
#define VIV_FE_STALL_TOKEN_FROM(x) (((x) << VIV_FE_STALL_TOKEN_FROM__SHIFT) & VIV_FE_STALL_TOKEN_FROM__MASK)
#define VIV_FE_STALL_TOKEN_TO__MASK 0x00001f00
#define VIV_FE_STALL_TOKEN_TO__SHIFT 8
#define VIV_FE_STALL_TOKEN_TO(x) (((x) << VIV_FE_STALL_TOKEN_TO__SHIFT) & VIV_FE_STALL_TOKEN_TO__MASK)
#define VIV_FE_CALL 0x00000000
#define VIV_FE_CALL_HEADER 0x00000000
#define VIV_FE_CALL_HEADER_PREFETCH__MASK 0x0000ffff
#define VIV_FE_CALL_HEADER_PREFETCH__SHIFT 0
#define VIV_FE_CALL_HEADER_PREFETCH(x) (((x) << VIV_FE_CALL_HEADER_PREFETCH__SHIFT) & VIV_FE_CALL_HEADER_PREFETCH__MASK)
#define VIV_FE_CALL_HEADER_OP__MASK 0xf8000000
#define VIV_FE_CALL_HEADER_OP__SHIFT 27
#define VIV_FE_CALL_HEADER_OP_CALL 0x50000000
#define VIV_FE_CALL_ADDRESS 0x00000004
#define VIV_FE_CALL_RETURN_PREFETCH 0x00000008
#define VIV_FE_CALL_RETURN_ADDRESS 0x0000000c
#define VIV_FE_RETURN 0x00000000
#define VIV_FE_RETURN_HEADER 0x00000000
#define VIV_FE_RETURN_HEADER_OP__MASK 0xf8000000
#define VIV_FE_RETURN_HEADER_OP__SHIFT 27
#define VIV_FE_RETURN_HEADER_OP_RETURN 0x58000000
#define VIV_FE_CHIP_SELECT 0x00000000
#define VIV_FE_CHIP_SELECT_HEADER 0x00000000
#define VIV_FE_CHIP_SELECT_HEADER_OP__MASK 0xf8000000
#define VIV_FE_CHIP_SELECT_HEADER_OP__SHIFT 27
#define VIV_FE_CHIP_SELECT_HEADER_OP_CHIP_SELECT 0x68000000
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP15 0x00008000
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP14 0x00004000
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP13 0x00002000
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP12 0x00001000
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP11 0x00000800
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP10 0x00000400
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP9 0x00000200
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP8 0x00000100
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP7 0x00000080
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP6 0x00000040
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP5 0x00000020
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP4 0x00000010
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP3 0x00000008
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP2 0x00000004
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP1 0x00000002
#define VIV_FE_CHIP_SELECT_HEADER_ENABLE_CHIP0 0x00000001
#endif /* CMDSTREAM_XML */

249
drivers/gpu/drm/etnaviv/common.xml.h Normal file
View file

@ -0,0 +1,249 @@
#ifndef COMMON_XML
#define COMMON_XML
/* Autogenerated file, DO NOT EDIT manually!
This file was generated by the rules-ng-ng headergen tool in this git repository:
http://0x04.net/cgit/index.cgi/rules-ng-ng
git clone git://0x04.net/rules-ng-ng
The rules-ng-ng source files this header was generated from are:
- state_vg.xml ( 5973 bytes, from 2015-03-25 11:26:01)
- common.xml ( 18437 bytes, from 2015-03-25 11:27:41)
Copyright (C) 2015
*/
#define PIPE_ID_PIPE_3D 0x00000000
#define PIPE_ID_PIPE_2D 0x00000001
#define SYNC_RECIPIENT_FE 0x00000001
#define SYNC_RECIPIENT_RA 0x00000005
#define SYNC_RECIPIENT_PE 0x00000007
#define SYNC_RECIPIENT_DE 0x0000000b
#define SYNC_RECIPIENT_VG 0x0000000f
#define SYNC_RECIPIENT_TESSELATOR 0x00000010
#define SYNC_RECIPIENT_VG2 0x00000011
#define SYNC_RECIPIENT_TESSELATOR2 0x00000012
#define SYNC_RECIPIENT_VG3 0x00000013
#define SYNC_RECIPIENT_TESSELATOR3 0x00000014
#define ENDIAN_MODE_NO_SWAP 0x00000000
#define ENDIAN_MODE_SWAP_16 0x00000001
#define ENDIAN_MODE_SWAP_32 0x00000002
#define chipModel_GC300 0x00000300
#define chipModel_GC320 0x00000320
#define chipModel_GC350 0x00000350
#define chipModel_GC355 0x00000355
#define chipModel_GC400 0x00000400
#define chipModel_GC410 0x00000410
#define chipModel_GC420 0x00000420
#define chipModel_GC450 0x00000450
#define chipModel_GC500 0x00000500
#define chipModel_GC530 0x00000530
#define chipModel_GC600 0x00000600
#define chipModel_GC700 0x00000700
#define chipModel_GC800 0x00000800
#define chipModel_GC860 0x00000860
#define chipModel_GC880 0x00000880
#define chipModel_GC1000 0x00001000
#define chipModel_GC2000 0x00002000
#define chipModel_GC2100 0x00002100
#define chipModel_GC4000 0x00004000
#define RGBA_BITS_R 0x00000001
#define RGBA_BITS_G 0x00000002
#define RGBA_BITS_B 0x00000004
#define RGBA_BITS_A 0x00000008
#define chipFeatures_FAST_CLEAR 0x00000001
#define chipFeatures_SPECIAL_ANTI_ALIASING 0x00000002
#define chipFeatures_PIPE_3D 0x00000004
#define chipFeatures_DXT_TEXTURE_COMPRESSION 0x00000008
#define chipFeatures_DEBUG_MODE 0x00000010
#define chipFeatures_Z_COMPRESSION 0x00000020
#define chipFeatures_YUV420_SCALER 0x00000040
#define chipFeatures_MSAA 0x00000080
#define chipFeatures_DC 0x00000100
#define chipFeatures_PIPE_2D 0x00000200
#define chipFeatures_ETC1_TEXTURE_COMPRESSION 0x00000400
#define chipFeatures_FAST_SCALER 0x00000800
#define chipFeatures_HIGH_DYNAMIC_RANGE 0x00001000
#define chipFeatures_YUV420_TILER 0x00002000
#define chipFeatures_MODULE_CG 0x00004000
#define chipFeatures_MIN_AREA 0x00008000
#define chipFeatures_NO_EARLY_Z 0x00010000
#define chipFeatures_NO_422_TEXTURE 0x00020000
#define chipFeatures_BUFFER_INTERLEAVING 0x00040000
#define chipFeatures_BYTE_WRITE_2D 0x00080000
#define chipFeatures_NO_SCALER 0x00100000
#define chipFeatures_YUY2_AVERAGING 0x00200000
#define chipFeatures_HALF_PE_CACHE 0x00400000
#define chipFeatures_HALF_TX_CACHE 0x00800000
#define chipFeatures_YUY2_RENDER_TARGET 0x01000000
#define chipFeatures_MEM32 0x02000000
#define chipFeatures_PIPE_VG 0x04000000
#define chipFeatures_VGTS 0x08000000
#define chipFeatures_FE20 0x10000000
#define chipFeatures_BYTE_WRITE_3D 0x20000000
#define chipFeatures_RS_YUV_TARGET 0x40000000
#define chipFeatures_32_BIT_INDICES 0x80000000
#define chipMinorFeatures0_FLIP_Y 0x00000001
#define chipMinorFeatures0_DUAL_RETURN_BUS 0x00000002
#define chipMinorFeatures0_ENDIANNESS_CONFIG 0x00000004
#define chipMinorFeatures0_TEXTURE_8K 0x00000008
#define chipMinorFeatures0_CORRECT_TEXTURE_CONVERTER 0x00000010
#define chipMinorFeatures0_SPECIAL_MSAA_LOD 0x00000020
#define chipMinorFeatures0_FAST_CLEAR_FLUSH 0x00000040
#define chipMinorFeatures0_2DPE20 0x00000080
#define chipMinorFeatures0_CORRECT_AUTO_DISABLE 0x00000100
#define chipMinorFeatures0_RENDERTARGET_8K 0x00000200
#define chipMinorFeatures0_2BITPERTILE 0x00000400
#define chipMinorFeatures0_SEPARATE_TILE_STATUS_WHEN_INTERLEAVED 0x00000800
#define chipMinorFeatures0_SUPER_TILED 0x00001000
#define chipMinorFeatures0_VG_20 0x00002000
#define chipMinorFeatures0_TS_EXTENDED_COMMANDS 0x00004000
#define chipMinorFeatures0_COMPRESSION_FIFO_FIXED 0x00008000
#define chipMinorFeatures0_HAS_SIGN_FLOOR_CEIL 0x00010000
#define chipMinorFeatures0_VG_FILTER 0x00020000
#define chipMinorFeatures0_VG_21 0x00040000
#define chipMinorFeatures0_SHADER_HAS_W 0x00080000
#define chipMinorFeatures0_HAS_SQRT_TRIG 0x00100000
#define chipMinorFeatures0_MORE_MINOR_FEATURES 0x00200000
#define chipMinorFeatures0_MC20 0x00400000
#define chipMinorFeatures0_MSAA_SIDEBAND 0x00800000
#define chipMinorFeatures0_BUG_FIXES0 0x01000000
#define chipMinorFeatures0_VAA 0x02000000
#define chipMinorFeatures0_BYPASS_IN_MSAA 0x04000000
#define chipMinorFeatures0_HZ 0x08000000
#define chipMinorFeatures0_NEW_TEXTURE 0x10000000
#define chipMinorFeatures0_2D_A8_TARGET 0x20000000
#define chipMinorFeatures0_CORRECT_STENCIL 0x40000000
#define chipMinorFeatures0_ENHANCE_VR 0x80000000
#define chipMinorFeatures1_RSUV_SWIZZLE 0x00000001
#define chipMinorFeatures1_V2_COMPRESSION 0x00000002
#define chipMinorFeatures1_VG_DOUBLE_BUFFER 0x00000004
#define chipMinorFeatures1_EXTRA_EVENT_STATES 0x00000008
#define chipMinorFeatures1_NO_STRIPING_NEEDED 0x00000010
#define chipMinorFeatures1_TEXTURE_STRIDE 0x00000020
#define chipMinorFeatures1_BUG_FIXES3 0x00000040
#define chipMinorFeatures1_AUTO_DISABLE 0x00000080
#define chipMinorFeatures1_AUTO_RESTART_TS 0x00000100
#define chipMinorFeatures1_DISABLE_PE_GATING 0x00000200
#define chipMinorFeatures1_L2_WINDOWING 0x00000400
#define chipMinorFeatures1_HALF_FLOAT 0x00000800
#define chipMinorFeatures1_PIXEL_DITHER 0x00001000
#define chipMinorFeatures1_TWO_STENCIL_REFERENCE 0x00002000
#define chipMinorFeatures1_EXTENDED_PIXEL_FORMAT 0x00004000
#define chipMinorFeatures1_CORRECT_MIN_MAX_DEPTH 0x00008000
#define chipMinorFeatures1_2D_DITHER 0x00010000
#define chipMinorFeatures1_BUG_FIXES5 0x00020000
#define chipMinorFeatures1_NEW_2D 0x00040000
#define chipMinorFeatures1_NEW_FP 0x00080000
#define chipMinorFeatures1_TEXTURE_HALIGN 0x00100000
#define chipMinorFeatures1_NON_POWER_OF_TWO 0x00200000
#define chipMinorFeatures1_LINEAR_TEXTURE_SUPPORT 0x00400000
#define chipMinorFeatures1_HALTI0 0x00800000
#define chipMinorFeatures1_CORRECT_OVERFLOW_VG 0x01000000
#define chipMinorFeatures1_NEGATIVE_LOG_FIX 0x02000000
#define chipMinorFeatures1_RESOLVE_OFFSET 0x04000000
#define chipMinorFeatures1_OK_TO_GATE_AXI_CLOCK 0x08000000
#define chipMinorFeatures1_MMU_VERSION 0x10000000
#define chipMinorFeatures1_WIDE_LINE 0x20000000
#define chipMinorFeatures1_BUG_FIXES6 0x40000000
#define chipMinorFeatures1_FC_FLUSH_STALL 0x80000000
#define chipMinorFeatures2_LINE_LOOP 0x00000001
#define chipMinorFeatures2_LOGIC_OP 0x00000002
#define chipMinorFeatures2_UNK2 0x00000004
#define chipMinorFeatures2_SUPERTILED_TEXTURE 0x00000008
#define chipMinorFeatures2_UNK4 0x00000010
#define chipMinorFeatures2_RECT_PRIMITIVE 0x00000020
#define chipMinorFeatures2_COMPOSITION 0x00000040
#define chipMinorFeatures2_CORRECT_AUTO_DISABLE_COUNT 0x00000080
#define chipMinorFeatures2_UNK8 0x00000100
#define chipMinorFeatures2_UNK9 0x00000200
#define chipMinorFeatures2_UNK10 0x00000400
#define chipMinorFeatures2_SAMPLERBASE_16 0x00000800
#define chipMinorFeatures2_UNK12 0x00001000
#define chipMinorFeatures2_UNK13 0x00002000
#define chipMinorFeatures2_UNK14 0x00004000
#define chipMinorFeatures2_EXTRA_TEXTURE_STATE 0x00008000
#define chipMinorFeatures2_FULL_DIRECTFB 0x00010000
#define chipMinorFeatures2_2D_TILING 0x00020000
#define chipMinorFeatures2_THREAD_WALKER_IN_PS 0x00040000
#define chipMinorFeatures2_TILE_FILLER 0x00080000
#define chipMinorFeatures2_UNK20 0x00100000
#define chipMinorFeatures2_2D_MULTI_SOURCE_BLIT 0x00200000
#define chipMinorFeatures2_UNK22 0x00400000
#define chipMinorFeatures2_UNK23 0x00800000
#define chipMinorFeatures2_UNK24 0x01000000
#define chipMinorFeatures2_MIXED_STREAMS 0x02000000
#define chipMinorFeatures2_2D_420_L2CACHE 0x04000000
#define chipMinorFeatures2_UNK27 0x08000000
#define chipMinorFeatures2_2D_NO_INDEX8_BRUSH 0x10000000
#define chipMinorFeatures2_TEXTURE_TILED_READ 0x20000000
#define chipMinorFeatures2_UNK30 0x40000000
#define chipMinorFeatures2_UNK31 0x80000000
#define chipMinorFeatures3_ROTATION_STALL_FIX 0x00000001
#define chipMinorFeatures3_UNK1 0x00000002
#define chipMinorFeatures3_2D_MULTI_SOURCE_BLT_EX 0x00000004
#define chipMinorFeatures3_UNK3 0x00000008
#define chipMinorFeatures3_UNK4 0x00000010
#define chipMinorFeatures3_UNK5 0x00000020
#define chipMinorFeatures3_UNK6 0x00000040
#define chipMinorFeatures3_UNK7 0x00000080
#define chipMinorFeatures3_UNK8 0x00000100
#define chipMinorFeatures3_UNK9 0x00000200
#define chipMinorFeatures3_BUG_FIXES10 0x00000400
#define chipMinorFeatures3_UNK11 0x00000800
#define chipMinorFeatures3_BUG_FIXES11 0x00001000
#define chipMinorFeatures3_UNK13 0x00002000
#define chipMinorFeatures3_UNK14 0x00004000
#define chipMinorFeatures3_UNK15 0x00008000
#define chipMinorFeatures3_UNK16 0x00010000
#define chipMinorFeatures3_UNK17 0x00020000
#define chipMinorFeatures3_UNK18 0x00040000
#define chipMinorFeatures3_UNK19 0x00080000
#define chipMinorFeatures3_UNK20 0x00100000
#define chipMinorFeatures3_UNK21 0x00200000
#define chipMinorFeatures3_UNK22 0x00400000
#define chipMinorFeatures3_UNK23 0x00800000
#define chipMinorFeatures3_UNK24 0x01000000
#define chipMinorFeatures3_UNK25 0x02000000
#define chipMinorFeatures3_UNK26 0x04000000
#define chipMinorFeatures3_UNK27 0x08000000
#define chipMinorFeatures3_UNK28 0x10000000
#define chipMinorFeatures3_UNK29 0x20000000
#define chipMinorFeatures3_UNK30 0x40000000
#define chipMinorFeatures3_UNK31 0x80000000
#define chipMinorFeatures4_UNK0 0x00000001
#define chipMinorFeatures4_UNK1 0x00000002
#define chipMinorFeatures4_UNK2 0x00000004
#define chipMinorFeatures4_UNK3 0x00000008
#define chipMinorFeatures4_UNK4 0x00000010
#define chipMinorFeatures4_UNK5 0x00000020
#define chipMinorFeatures4_UNK6 0x00000040
#define chipMinorFeatures4_UNK7 0x00000080
#define chipMinorFeatures4_UNK8 0x00000100
#define chipMinorFeatures4_UNK9 0x00000200
#define chipMinorFeatures4_UNK10 0x00000400
#define chipMinorFeatures4_UNK11 0x00000800
#define chipMinorFeatures4_UNK12 0x00001000
#define chipMinorFeatures4_UNK13 0x00002000
#define chipMinorFeatures4_UNK14 0x00004000
#define chipMinorFeatures4_UNK15 0x00008000
#define chipMinorFeatures4_UNK16 0x00010000
#define chipMinorFeatures4_UNK17 0x00020000
#define chipMinorFeatures4_UNK18 0x00040000
#define chipMinorFeatures4_UNK19 0x00080000
#define chipMinorFeatures4_UNK20 0x00100000
#define chipMinorFeatures4_UNK21 0x00200000
#define chipMinorFeatures4_UNK22 0x00400000
#define chipMinorFeatures4_UNK23 0x00800000
#define chipMinorFeatures4_UNK24 0x01000000
#define chipMinorFeatures4_UNK25 0x02000000
#define chipMinorFeatures4_UNK26 0x04000000
#define chipMinorFeatures4_UNK27 0x08000000
#define chipMinorFeatures4_UNK28 0x10000000
#define chipMinorFeatures4_UNK29 0x20000000
#define chipMinorFeatures4_UNK30 0x40000000
#define chipMinorFeatures4_UNK31 0x80000000
#endif /* COMMON_XML */

268
drivers/gpu/drm/etnaviv/etnaviv_buffer.c Normal file
View file

@ -0,0 +1,268 @@
/*
* Copyright (C) 2014 Etnaviv Project
* Author: Christian Gmeiner <christian.gmeiner@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "etnaviv_gpu.h"
#include "etnaviv_gem.h"
#include "etnaviv_mmu.h"
#include "common.xml.h"
#include "state.xml.h"
#include "cmdstream.xml.h"
/*
* Command Buffer helper:
*/
static inline void OUT(struct etnaviv_cmdbuf *buffer, u32 data)
{
u32 *vaddr = (u32 *)buffer->vaddr;
BUG_ON(buffer->user_size >= buffer->size);
vaddr[buffer->user_size / 4] = data;
buffer->user_size += 4;
}
static inline void CMD_LOAD_STATE(struct etnaviv_cmdbuf *buffer,
u32 reg, u32 value)
{
u32 index = reg >> VIV_FE_LOAD_STATE_HEADER_OFFSET__SHR;
buffer->user_size = ALIGN(buffer->user_size, 8);
/* write a register via cmd stream */
OUT(buffer, VIV_FE_LOAD_STATE_HEADER_OP_LOAD_STATE |
VIV_FE_LOAD_STATE_HEADER_COUNT(1) |
VIV_FE_LOAD_STATE_HEADER_OFFSET(index));
OUT(buffer, value);
}
static inline void CMD_END(struct etnaviv_cmdbuf *buffer)
{
buffer->user_size = ALIGN(buffer->user_size, 8);
OUT(buffer, VIV_FE_END_HEADER_OP_END);
}
static inline void CMD_WAIT(struct etnaviv_cmdbuf *buffer)
{
buffer->user_size = ALIGN(buffer->user_size, 8);
OUT(buffer, VIV_FE_WAIT_HEADER_OP_WAIT | 200);
}
static inline void CMD_LINK(struct etnaviv_cmdbuf *buffer,
u16 prefetch, u32 address)
{
buffer->user_size = ALIGN(buffer->user_size, 8);
OUT(buffer, VIV_FE_LINK_HEADER_OP_LINK |
VIV_FE_LINK_HEADER_PREFETCH(prefetch));
OUT(buffer, address);
}
static inline void CMD_STALL(struct etnaviv_cmdbuf *buffer,
u32 from, u32 to)
{
buffer->user_size = ALIGN(buffer->user_size, 8);
OUT(buffer, VIV_FE_STALL_HEADER_OP_STALL);
OUT(buffer, VIV_FE_STALL_TOKEN_FROM(from) | VIV_FE_STALL_TOKEN_TO(to));
}
static void etnaviv_cmd_select_pipe(struct etnaviv_cmdbuf *buffer, u8 pipe)
{
u32 flush;
u32 stall;
/*
* This assumes that if we're switching to 2D, we're switching
* away from 3D, and vice versa. Hence, if we're switching to
* the 2D core, we need to flush the 3D depth and color caches,
* otherwise we need to flush the 2D pixel engine cache.
*/
if (pipe == ETNA_PIPE_2D)
flush = VIVS_GL_FLUSH_CACHE_DEPTH | VIVS_GL_FLUSH_CACHE_COLOR;
else
flush = VIVS_GL_FLUSH_CACHE_PE2D;
stall = VIVS_GL_SEMAPHORE_TOKEN_FROM(SYNC_RECIPIENT_FE) |
VIVS_GL_SEMAPHORE_TOKEN_TO(SYNC_RECIPIENT_PE);
CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE, flush);
CMD_LOAD_STATE(buffer, VIVS_GL_SEMAPHORE_TOKEN, stall);
CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE);
CMD_LOAD_STATE(buffer, VIVS_GL_PIPE_SELECT,
VIVS_GL_PIPE_SELECT_PIPE(pipe));
}
static u32 gpu_va(struct etnaviv_gpu *gpu, struct etnaviv_cmdbuf *buf)
{
return buf->paddr - gpu->memory_base;
}
static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu,
struct etnaviv_cmdbuf *buf, u32 off, u32 len)
{
u32 size = buf->size;
u32 *ptr = buf->vaddr + off;
dev_info(gpu->dev, "virt %p phys 0x%08x free 0x%08x\n",
ptr, gpu_va(gpu, buf) + off, size - len * 4 - off);
print_hex_dump(KERN_INFO, "cmd ", DUMP_PREFIX_OFFSET, 16, 4,
ptr, len * 4, 0);
}
u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu)
{
struct etnaviv_cmdbuf *buffer = gpu->buffer;
/* initialize buffer */
buffer->user_size = 0;
CMD_WAIT(buffer);
CMD_LINK(buffer, 2, gpu_va(gpu, buffer) + buffer->user_size - 4);
return buffer->user_size / 8;
}
void etnaviv_buffer_end(struct etnaviv_gpu *gpu)
{
struct etnaviv_cmdbuf *buffer = gpu->buffer;
/* Replace the last WAIT with an END */
buffer->user_size -= 16;
CMD_END(buffer);
mb();
}
void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
struct etnaviv_cmdbuf *cmdbuf)
{
struct etnaviv_cmdbuf *buffer = gpu->buffer;
u32 *lw = buffer->vaddr + buffer->user_size - 16;
u32 back, link_target, link_size, reserve_size, extra_size = 0;
if (drm_debug & DRM_UT_DRIVER)
etnaviv_buffer_dump(gpu, buffer, 0, 0x50);
/*
* If we need to flush the MMU prior to submitting this buffer, we
* will need to append a mmu flush load state, followed by a new
* link to this buffer - a total of four additional words.
*/
if (gpu->mmu->need_flush || gpu->switch_context) {
/* link command */
extra_size += 2;
/* flush command */
if (gpu->mmu->need_flush)
extra_size += 2;
/* pipe switch commands */
if (gpu->switch_context)
extra_size += 8;
}
reserve_size = (6 + extra_size) * 4;
/*
* if we are going to completely overflow the buffer, we need to wrap.
*/
if (buffer->user_size + reserve_size > buffer->size)
buffer->user_size = 0;
/* save offset back into main buffer */
back = buffer->user_size + reserve_size - 6 * 4;
link_target = gpu_va(gpu, buffer) + buffer->user_size;
link_size = 6;
/* Skip over any extra instructions */
link_target += extra_size * sizeof(u32);
if (drm_debug & DRM_UT_DRIVER)
pr_info("stream link to 0x%08x @ 0x%08x %p\n",
link_target, gpu_va(gpu, cmdbuf), cmdbuf->vaddr);
/* jump back from cmd to main buffer */
CMD_LINK(cmdbuf, link_size, link_target);
link_target = gpu_va(gpu, cmdbuf);
link_size = cmdbuf->size / 8;
if (drm_debug & DRM_UT_DRIVER) {
print_hex_dump(KERN_INFO, "cmd ", DUMP_PREFIX_OFFSET, 16, 4,
cmdbuf->vaddr, cmdbuf->size, 0);
pr_info("link op: %p\n", lw);
pr_info("link addr: %p\n", lw + 1);
pr_info("addr: 0x%08x\n", link_target);
pr_info("back: 0x%08x\n", gpu_va(gpu, buffer) + back);
pr_info("event: %d\n", event);
}
if (gpu->mmu->need_flush || gpu->switch_context) {
u32 new_target = gpu_va(gpu, buffer) + buffer->user_size;
if (gpu->mmu->need_flush) {
/* Add the MMU flush */
CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_MMU,
VIVS_GL_FLUSH_MMU_FLUSH_FEMMU |
VIVS_GL_FLUSH_MMU_FLUSH_UNK1 |
VIVS_GL_FLUSH_MMU_FLUSH_UNK2 |
VIVS_GL_FLUSH_MMU_FLUSH_PEMMU |
VIVS_GL_FLUSH_MMU_FLUSH_UNK4);
gpu->mmu->need_flush = false;
}
if (gpu->switch_context) {
etnaviv_cmd_select_pipe(buffer, cmdbuf->exec_state);
gpu->switch_context = false;
}
/* And the link to the first buffer */
CMD_LINK(buffer, link_size, link_target);
/* Update the link target to point to above instructions */
link_target = new_target;
link_size = extra_size;
}
/* trigger event */
CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) |
VIVS_GL_EVENT_FROM_PE);
/* append WAIT/LINK to main buffer */
CMD_WAIT(buffer);
CMD_LINK(buffer, 2, gpu_va(gpu, buffer) + (buffer->user_size - 4));
/* Change WAIT into a LINK command; write the address first. */
*(lw + 1) = link_target;
mb();
*(lw) = VIV_FE_LINK_HEADER_OP_LINK |
VIV_FE_LINK_HEADER_PREFETCH(link_size);
mb();
if (drm_debug & DRM_UT_DRIVER)
etnaviv_buffer_dump(gpu, buffer, 0, 0x50);
}

209
drivers/gpu/drm/etnaviv/etnaviv_cmd_parser.c Normal file
View file

@ -0,0 +1,209 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
#include "etnaviv_gem.h"
#include "etnaviv_gpu.h"
#include "cmdstream.xml.h"
#define EXTRACT(val, field) (((val) & field##__MASK) >> field##__SHIFT)
struct etna_validation_state {
struct etnaviv_gpu *gpu;
const struct drm_etnaviv_gem_submit_reloc *relocs;
unsigned int num_relocs;
u32 *start;
};
static const struct {
u16 offset;
u16 size;
} etnaviv_sensitive_states[] __initconst = {
#define ST(start, num) { (start) >> 2, (num) }
/* 2D */
ST(0x1200, 1),
ST(0x1228, 1),
ST(0x1238, 1),
ST(0x1284, 1),
ST(0x128c, 1),
ST(0x1304, 1),
ST(0x1310, 1),
ST(0x1318, 1),
ST(0x12800, 4),
ST(0x128a0, 4),
ST(0x128c0, 4),
ST(0x12970, 4),
ST(0x12a00, 8),
ST(0x12b40, 8),
ST(0x12b80, 8),
ST(0x12ce0, 8),
/* 3D */
ST(0x0644, 1),
ST(0x064c, 1),
ST(0x0680, 8),
ST(0x1410, 1),
ST(0x1430, 1),
ST(0x1458, 1),
ST(0x1460, 8),
ST(0x1480, 8),
ST(0x1500, 8),
ST(0x1520, 8),
ST(0x1608, 1),
ST(0x1610, 1),
ST(0x1658, 1),
ST(0x165c, 1),
ST(0x1664, 1),
ST(0x1668, 1),
ST(0x16a4, 1),
ST(0x16c0, 8),
ST(0x16e0, 8),
ST(0x1740, 8),
ST(0x2400, 14 * 16),
ST(0x10800, 32 * 16),
#undef ST
};
#define ETNAVIV_STATES_SIZE (VIV_FE_LOAD_STATE_HEADER_OFFSET__MASK + 1u)
static DECLARE_BITMAP(etnaviv_states, ETNAVIV_STATES_SIZE);
void __init etnaviv_validate_init(void)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(etnaviv_sensitive_states); i++)
bitmap_set(etnaviv_states, etnaviv_sensitive_states[i].offset,
etnaviv_sensitive_states[i].size);
}
static void etnaviv_warn_if_non_sensitive(struct etna_validation_state *state,
unsigned int buf_offset, unsigned int state_addr)
{
if (state->num_relocs && state->relocs->submit_offset < buf_offset) {
dev_warn_once(state->gpu->dev,
"%s: relocation for non-sensitive state 0x%x at offset %u\n",
__func__, state_addr,
state->relocs->submit_offset);
while (state->num_relocs &&
state->relocs->submit_offset < buf_offset) {
state->relocs++;
state->num_relocs--;
}
}
}
static bool etnaviv_validate_load_state(struct etna_validation_state *state,
u32 *ptr, unsigned int state_offset, unsigned int num)
{
unsigned int size = min(ETNAVIV_STATES_SIZE, state_offset + num);
unsigned int st_offset = state_offset, buf_offset;
for_each_set_bit_from(st_offset, etnaviv_states, size) {
buf_offset = (ptr - state->start +
st_offset - state_offset) * 4;
etnaviv_warn_if_non_sensitive(state, buf_offset, st_offset * 4);
if (state->num_relocs &&
state->relocs->submit_offset == buf_offset) {
state->relocs++;
state->num_relocs--;
continue;
}
dev_warn_ratelimited(state->gpu->dev,
"%s: load state touches restricted state 0x%x at offset %u\n",
__func__, st_offset * 4, buf_offset);
return false;
}
if (state->num_relocs) {
buf_offset = (ptr - state->start + num) * 4;
etnaviv_warn_if_non_sensitive(state, buf_offset, st_offset * 4 +
state->relocs->submit_offset -
buf_offset);
}
return true;
}
static uint8_t cmd_length[32] = {
[FE_OPCODE_DRAW_PRIMITIVES] = 4,
[FE_OPCODE_DRAW_INDEXED_PRIMITIVES] = 6,
[FE_OPCODE_NOP] = 2,
[FE_OPCODE_STALL] = 2,
};
bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu, u32 *stream,
unsigned int size,
struct drm_etnaviv_gem_submit_reloc *relocs,
unsigned int reloc_size)
{
struct etna_validation_state state;
u32 *buf = stream;
u32 *end = buf + size;
state.gpu = gpu;
state.relocs = relocs;
state.num_relocs = reloc_size;
state.start = stream;
while (buf < end) {
u32 cmd = *buf;
unsigned int len, n, off;
unsigned int op = cmd >> 27;
switch (op) {
case FE_OPCODE_LOAD_STATE:
n = EXTRACT(cmd, VIV_FE_LOAD_STATE_HEADER_COUNT);
len = ALIGN(1 + n, 2);
if (buf + len > end)
break;
off = EXTRACT(cmd, VIV_FE_LOAD_STATE_HEADER_OFFSET);
if (!etnaviv_validate_load_state(&state, buf + 1,
off, n))
return false;
break;
case FE_OPCODE_DRAW_2D:
n = EXTRACT(cmd, VIV_FE_DRAW_2D_HEADER_COUNT);
if (n == 0)
n = 256;
len = 2 + n * 2;
break;
default:
len = cmd_length[op];
if (len == 0) {
dev_err(gpu->dev, "%s: op %u not permitted at offset %tu\n",
__func__, op, buf - state.start);
return false;
}
break;
}
buf += len;
}
if (buf > end) {
dev_err(gpu->dev, "%s: commands overflow end of buffer: %tu > %u\n",
__func__, buf - state.start, size);
return false;
}
return true;
}

707
drivers/gpu/drm/etnaviv/etnaviv_drv.c Normal file
View file

@ -0,0 +1,707 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/component.h>
#include <linux/of_platform.h>
#include "etnaviv_drv.h"
#include "etnaviv_gpu.h"
#include "etnaviv_gem.h"
#include "etnaviv_mmu.h"
#include "etnaviv_gem.h"
#ifdef CONFIG_DRM_ETNAVIV_REGISTER_LOGGING
static bool reglog;
MODULE_PARM_DESC(reglog, "Enable register read/write logging");
module_param(reglog, bool, 0600);
#else
#define reglog 0
#endif
void __iomem *etnaviv_ioremap(struct platform_device *pdev, const char *name,
const char *dbgname)
{
struct resource *res;
void __iomem *ptr;
if (name)
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
else
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ptr = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ptr)) {
dev_err(&pdev->dev, "failed to ioremap %s: %ld\n", name,
PTR_ERR(ptr));
return ptr;
}
if (reglog)
dev_printk(KERN_DEBUG, &pdev->dev, "IO:region %s 0x%p %08zx\n",
dbgname, ptr, (size_t)resource_size(res));
return ptr;
}
void etnaviv_writel(u32 data, void __iomem *addr)
{
if (reglog)
printk(KERN_DEBUG "IO:W %p %08x\n", addr, data);
writel(data, addr);
}
u32 etnaviv_readl(const void __iomem *addr)
{
u32 val = readl(addr);
if (reglog)
printk(KERN_DEBUG "IO:R %p %08x\n", addr, val);
return val;
}
/*
* DRM operations:
*/
static void load_gpu(struct drm_device *dev)
{
struct etnaviv_drm_private *priv = dev->dev_private;
unsigned int i;
for (i = 0; i < ETNA_MAX_PIPES; i++) {
struct etnaviv_gpu *g = priv->gpu[i];
if (g) {
int ret;
ret = etnaviv_gpu_init(g);
if (ret) {
dev_err(g->dev, "hw init failed: %d\n", ret);
priv->gpu[i] = NULL;
}
}
}
}
static int etnaviv_open(struct drm_device *dev, struct drm_file *file)
{
struct etnaviv_file_private *ctx;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
file->driver_priv = ctx;
return 0;
}
static void etnaviv_preclose(struct drm_device *dev, struct drm_file *file)
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct etnaviv_file_private *ctx = file->driver_priv;
unsigned int i;
for (i = 0; i < ETNA_MAX_PIPES; i++) {
struct etnaviv_gpu *gpu = priv->gpu[i];
if (gpu) {
mutex_lock(&gpu->lock);
if (gpu->lastctx == ctx)
gpu->lastctx = NULL;
mutex_unlock(&gpu->lock);
}
}
kfree(ctx);
}
/*
* DRM debugfs:
*/
#ifdef CONFIG_DEBUG_FS
static int etnaviv_gem_show(struct drm_device *dev, struct seq_file *m)
{
struct etnaviv_drm_private *priv = dev->dev_private;
etnaviv_gem_describe_objects(priv, m);
return 0;
}
static int etnaviv_mm_show(struct drm_device *dev, struct seq_file *m)
{
int ret;
read_lock(&dev->vma_offset_manager->vm_lock);
ret = drm_mm_dump_table(m, &dev->vma_offset_manager->vm_addr_space_mm);
read_unlock(&dev->vma_offset_manager->vm_lock);
return ret;
}
static int etnaviv_mmu_show(struct etnaviv_gpu *gpu, struct seq_file *m)
{
seq_printf(m, "Active Objects (%s):\n", dev_name(gpu->dev));
mutex_lock(&gpu->mmu->lock);
drm_mm_dump_table(m, &gpu->mmu->mm);
mutex_unlock(&gpu->mmu->lock);
return 0;
}
static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, struct seq_file *m)
{
struct etnaviv_cmdbuf *buf = gpu->buffer;
u32 size = buf->size;
u32 *ptr = buf->vaddr;
u32 i;
seq_printf(m, "virt %p - phys 0x%llx - free 0x%08x\n",
buf->vaddr, (u64)buf->paddr, size - buf->user_size);
for (i = 0; i < size / 4; i++) {
if (i && !(i % 4))
seq_puts(m, "\n");
if (i % 4 == 0)
seq_printf(m, "\t0x%p: ", ptr + i);
seq_printf(m, "%08x ", *(ptr + i));
}
seq_puts(m, "\n");
}
static int etnaviv_ring_show(struct etnaviv_gpu *gpu, struct seq_file *m)
{
seq_printf(m, "Ring Buffer (%s): ", dev_name(gpu->dev));
mutex_lock(&gpu->lock);
etnaviv_buffer_dump(gpu, m);
mutex_unlock(&gpu->lock);
return 0;
}
static int show_unlocked(struct seq_file *m, void *arg)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
int (*show)(struct drm_device *dev, struct seq_file *m) =
node->info_ent->data;
return show(dev, m);
}
static int show_each_gpu(struct seq_file *m, void *arg)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
struct etnaviv_drm_private *priv = dev->dev_private;
struct etnaviv_gpu *gpu;
int (*show)(struct etnaviv_gpu *gpu, struct seq_file *m) =
node->info_ent->data;
unsigned int i;
int ret = 0;
for (i = 0; i < ETNA_MAX_PIPES; i++) {
gpu = priv->gpu[i];
if (!gpu)
continue;
ret = show(gpu, m);
if (ret < 0)
break;
}
return ret;
}
static struct drm_info_list etnaviv_debugfs_list[] = {
{"gpu", show_each_gpu, 0, etnaviv_gpu_debugfs},
{"gem", show_unlocked, 0, etnaviv_gem_show},
{ "mm", show_unlocked, 0, etnaviv_mm_show },
{"mmu", show_each_gpu, 0, etnaviv_mmu_show},
{"ring", show_each_gpu, 0, etnaviv_ring_show},
};
static int etnaviv_debugfs_init(struct drm_minor *minor)
{
struct drm_device *dev = minor->dev;
int ret;
ret = drm_debugfs_create_files(etnaviv_debugfs_list,
ARRAY_SIZE(etnaviv_debugfs_list),
minor->debugfs_root, minor);
if (ret) {
dev_err(dev->dev, "could not install etnaviv_debugfs_list\n");
return ret;
}
return ret;
}
static void etnaviv_debugfs_cleanup(struct drm_minor *minor)
{
drm_debugfs_remove_files(etnaviv_debugfs_list,
ARRAY_SIZE(etnaviv_debugfs_list), minor);
}
#endif
/*
* DRM ioctls:
*/
static int etnaviv_ioctl_get_param(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_etnaviv_param *args = data;
struct etnaviv_gpu *gpu;
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;
gpu = priv->gpu[args->pipe];
if (!gpu)
return -ENXIO;
return etnaviv_gpu_get_param(gpu, args->param, &args->value);
}
static int etnaviv_ioctl_gem_new(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_new *args = data;
if (args->flags & ~(ETNA_BO_CACHED | ETNA_BO_WC | ETNA_BO_UNCACHED |
ETNA_BO_FORCE_MMU))
return -EINVAL;
return etnaviv_gem_new_handle(dev, file, args->size,
args->flags, &args->handle);
}
#define TS(t) ((struct timespec){ \
.tv_sec = (t).tv_sec, \
.tv_nsec = (t).tv_nsec \
})
static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_cpu_prep *args = data;
struct drm_gem_object *obj;
int ret;
if (args->op & ~(ETNA_PREP_READ | ETNA_PREP_WRITE | ETNA_PREP_NOSYNC))
return -EINVAL;
obj = drm_gem_object_lookup(dev, file, args->handle);
if (!obj)
return -ENOENT;
ret = etnaviv_gem_cpu_prep(obj, args->op, &TS(args->timeout));
drm_gem_object_unreference_unlocked(obj);
return ret;
}
static int etnaviv_ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_cpu_fini *args = data;
struct drm_gem_object *obj;
int ret;
if (args->flags)
return -EINVAL;
obj = drm_gem_object_lookup(dev, file, args->handle);
if (!obj)
return -ENOENT;
ret = etnaviv_gem_cpu_fini(obj);
drm_gem_object_unreference_unlocked(obj);
return ret;
}
static int etnaviv_ioctl_gem_info(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_info *args = data;
struct drm_gem_object *obj;
int ret;
if (args->pad)
return -EINVAL;
obj = drm_gem_object_lookup(dev, file, args->handle);
if (!obj)
return -ENOENT;
ret = etnaviv_gem_mmap_offset(obj, &args->offset);
drm_gem_object_unreference_unlocked(obj);
return ret;
}
static int etnaviv_ioctl_wait_fence(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_wait_fence *args = data;
struct etnaviv_drm_private *priv = dev->dev_private;
struct timespec *timeout = &TS(args->timeout);
struct etnaviv_gpu *gpu;
if (args->flags & ~(ETNA_WAIT_NONBLOCK))
return -EINVAL;
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;
gpu = priv->gpu[args->pipe];
if (!gpu)
return -ENXIO;
if (args->flags & ETNA_WAIT_NONBLOCK)
timeout = NULL;
return etnaviv_gpu_wait_fence_interruptible(gpu, args->fence,
timeout);
}
static int etnaviv_ioctl_gem_userptr(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_etnaviv_gem_userptr *args = data;
int access;
if (args->flags & ~(ETNA_USERPTR_READ|ETNA_USERPTR_WRITE) ||
args->flags == 0)
return -EINVAL;
if (offset_in_page(args->user_ptr | args->user_size) ||
(uintptr_t)args->user_ptr != args->user_ptr ||
(u32)args->user_size != args->user_size ||
args->user_ptr & ~PAGE_MASK)
return -EINVAL;
if (args->flags & ETNA_USERPTR_WRITE)
access = VERIFY_WRITE;
else
access = VERIFY_READ;
if (!access_ok(access, (void __user *)(unsigned long)args->user_ptr,
args->user_size))
return -EFAULT;
return etnaviv_gem_new_userptr(dev, file, args->user_ptr,
args->user_size, args->flags,
&args->handle);
}
static int etnaviv_ioctl_gem_wait(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_etnaviv_gem_wait *args = data;
struct timespec *timeout = &TS(args->timeout);
struct drm_gem_object *obj;
struct etnaviv_gpu *gpu;
int ret;
if (args->flags & ~(ETNA_WAIT_NONBLOCK))
return -EINVAL;
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;
gpu = priv->gpu[args->pipe];
if (!gpu)
return -ENXIO;
obj = drm_gem_object_lookup(dev, file, args->handle);
if (!obj)
return -ENOENT;
if (args->flags & ETNA_WAIT_NONBLOCK)
timeout = NULL;
ret = etnaviv_gem_wait_bo(gpu, obj, timeout);
drm_gem_object_unreference_unlocked(obj);
return ret;
}
static const struct drm_ioctl_desc etnaviv_ioctls[] = {
#define ETNA_IOCTL(n, func, flags) \
DRM_IOCTL_DEF_DRV(ETNAVIV_##n, etnaviv_ioctl_##func, flags)
ETNA_IOCTL(GET_PARAM, get_param, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_NEW, gem_new, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_INFO, gem_info, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_CPU_PREP, gem_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_CPU_FINI, gem_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_SUBMIT, gem_submit, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(WAIT_FENCE, wait_fence, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_USERPTR, gem_userptr, DRM_AUTH|DRM_RENDER_ALLOW),
ETNA_IOCTL(GEM_WAIT, gem_wait, DRM_AUTH|DRM_RENDER_ALLOW),
};
static const struct vm_operations_struct vm_ops = {
.fault = etnaviv_gem_fault,
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
};
static const struct file_operations fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = drm_compat_ioctl,
#endif
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
.mmap = etnaviv_gem_mmap,
};
static struct drm_driver etnaviv_drm_driver = {
.driver_features = DRIVER_HAVE_IRQ |
DRIVER_GEM |
DRIVER_PRIME |
DRIVER_RENDER,
.open = etnaviv_open,
.preclose = etnaviv_preclose,
.set_busid = drm_platform_set_busid,
.gem_free_object = etnaviv_gem_free_object,
.gem_vm_ops = &vm_ops,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_export = drm_gem_prime_export,
.gem_prime_import = drm_gem_prime_import,
.gem_prime_pin = etnaviv_gem_prime_pin,
.gem_prime_unpin = etnaviv_gem_prime_unpin,
.gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
.gem_prime_import_sg_table = etnaviv_gem_prime_import_sg_table,
.gem_prime_vmap = etnaviv_gem_prime_vmap,
.gem_prime_vunmap = etnaviv_gem_prime_vunmap,
#ifdef CONFIG_DEBUG_FS
.debugfs_init = etnaviv_debugfs_init,
.debugfs_cleanup = etnaviv_debugfs_cleanup,
#endif
.ioctls = etnaviv_ioctls,
.num_ioctls = DRM_ETNAVIV_NUM_IOCTLS,
.fops = &fops,
.name = "etnaviv",
.desc = "etnaviv DRM",
.date = "20151214",
.major = 1,
.minor = 0,
};
/*
* Platform driver:
*/
static int etnaviv_bind(struct device *dev)
{
struct etnaviv_drm_private *priv;
struct drm_device *drm;
int ret;
drm = drm_dev_alloc(&etnaviv_drm_driver, dev);
if (!drm)
return -ENOMEM;
drm->platformdev = to_platform_device(dev);
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(dev, "failed to allocate private data\n");
ret = -ENOMEM;
goto out_unref;
}
drm->dev_private = priv;
priv->wq = alloc_ordered_workqueue("etnaviv", 0);
if (!priv->wq) {
ret = -ENOMEM;
goto out_wq;
}
mutex_init(&priv->gem_lock);
INIT_LIST_HEAD(&priv->gem_list);
priv->num_gpus = 0;
dev_set_drvdata(dev, drm);
ret = component_bind_all(dev, drm);
if (ret < 0)
goto out_bind;
load_gpu(drm);
ret = drm_dev_register(drm, 0);
if (ret)
goto out_register;
return 0;
out_register:
component_unbind_all(dev, drm);
out_bind:
flush_workqueue(priv->wq);
destroy_workqueue(priv->wq);
out_wq:
kfree(priv);
out_unref:
drm_dev_unref(drm);
return ret;
}
static void etnaviv_unbind(struct device *dev)
{
struct drm_device *drm = dev_get_drvdata(dev);
struct etnaviv_drm_private *priv = drm->dev_private;
drm_dev_unregister(drm);
flush_workqueue(priv->wq);
destroy_workqueue(priv->wq);
component_unbind_all(dev, drm);
drm->dev_private = NULL;
kfree(priv);
drm_put_dev(drm);
}
static const struct component_master_ops etnaviv_master_ops = {
.bind = etnaviv_bind,
.unbind = etnaviv_unbind,
};
static int compare_of(struct device *dev, void *data)
{
struct device_node *np = data;
return dev->of_node == np;
}
static int compare_str(struct device *dev, void *data)
{
return !strcmp(dev_name(dev), data);
}
static int etnaviv_pdev_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct component_match *match = NULL;
dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
if (node) {
struct device_node *core_node;
int i;
for (i = 0; ; i++) {
core_node = of_parse_phandle(node, "cores", i);
if (!core_node)
break;
component_match_add(&pdev->dev, &match, compare_of,
core_node);
of_node_put(core_node);
}
} else if (dev->platform_data) {
char **names = dev->platform_data;
unsigned i;
for (i = 0; names[i]; i++)
component_match_add(dev, &match, compare_str, names[i]);
}
return component_master_add_with_match(dev, &etnaviv_master_ops, match);
}
static int etnaviv_pdev_remove(struct platform_device *pdev)
{
component_master_del(&pdev->dev, &etnaviv_master_ops);
return 0;
}
static const struct of_device_id dt_match[] = {
{ .compatible = "fsl,imx-gpu-subsystem" },
{ .compatible = "marvell,dove-gpu-subsystem" },
{}
};
MODULE_DEVICE_TABLE(of, dt_match);
static struct platform_driver etnaviv_platform_driver = {
.probe = etnaviv_pdev_probe,
.remove = etnaviv_pdev_remove,
.driver = {
.owner = THIS_MODULE,
.name = "etnaviv",
.of_match_table = dt_match,
},
};
static int __init etnaviv_init(void)
{
int ret;
etnaviv_validate_init();
ret = platform_driver_register(&etnaviv_gpu_driver);
if (ret != 0)
return ret;
ret = platform_driver_register(&etnaviv_platform_driver);
if (ret != 0)
platform_driver_unregister(&etnaviv_gpu_driver);
return ret;
}
module_init(etnaviv_init);
static void __exit etnaviv_exit(void)
{
platform_driver_unregister(&etnaviv_gpu_driver);
platform_driver_unregister(&etnaviv_platform_driver);
}
module_exit(etnaviv_exit);
MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
MODULE_AUTHOR("Russell King <rmk+kernel@arm.linux.org.uk>");
MODULE_AUTHOR("Lucas Stach <l.stach@pengutronix.de>");
MODULE_DESCRIPTION("etnaviv DRM Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:etnaviv");

161
drivers/gpu/drm/etnaviv/etnaviv_drv.h Normal file
View file

@ -0,0 +1,161 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ETNAVIV_DRV_H__
#define __ETNAVIV_DRV_H__
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/iommu.h>
#include <linux/types.h>
#include <linux/sizes.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_gem.h>
#include <drm/etnaviv_drm.h>
struct etnaviv_cmdbuf;
struct etnaviv_gpu;
struct etnaviv_mmu;
struct etnaviv_gem_object;
struct etnaviv_gem_submit;
struct etnaviv_file_private {
/* currently we don't do anything useful with this.. but when
* per-context address spaces are supported we'd keep track of
* the context's page-tables here.
*/
int dummy;
};
struct etnaviv_drm_private {
int num_gpus;
struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
/* list of GEM objects: */
struct mutex gem_lock;
struct list_head gem_list;
struct workqueue_struct *wq;
};
static inline void etnaviv_queue_work(struct drm_device *dev,
struct work_struct *w)
{
struct etnaviv_drm_private *priv = dev->dev_private;
queue_work(priv->wq, w);
}
int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
struct drm_file *file);
int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
int etnaviv_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
int etnaviv_gem_get_iova(struct etnaviv_gpu *gpu,
struct drm_gem_object *obj, u32 *iova);
void etnaviv_gem_put_iova(struct etnaviv_gpu *gpu, struct drm_gem_object *obj);
struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach, struct sg_table *sg);
int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
void *etnaviv_gem_vaddr(struct drm_gem_object *obj);
int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
struct timespec *timeout);
int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
void etnaviv_gem_free_object(struct drm_gem_object *obj);
int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
u32 size, u32 flags, u32 *handle);
struct drm_gem_object *etnaviv_gem_new_locked(struct drm_device *dev,
u32 size, u32 flags);
struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev,
u32 size, u32 flags);
int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
uintptr_t ptr, u32 size, u32 flags, u32 *handle);
u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
struct etnaviv_cmdbuf *cmdbuf);
void etnaviv_validate_init(void);
bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu,
u32 *stream, unsigned int size,
struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size);
#ifdef CONFIG_DEBUG_FS
void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
struct seq_file *m);
#endif
void __iomem *etnaviv_ioremap(struct platform_device *pdev, const char *name,
const char *dbgname);
void etnaviv_writel(u32 data, void __iomem *addr);
u32 etnaviv_readl(const void __iomem *addr);
#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
/*
* Return the storage size of a structure with a variable length array.
* The array is nelem elements of elem_size, where the base structure
* is defined by base. If the size overflows size_t, return zero.
*/
static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
{
if (elem_size && nelem > (SIZE_MAX - base) / elem_size)
return 0;
return base + nelem * elem_size;
}
/* returns true if fence a comes after fence b */
static inline bool fence_after(u32 a, u32 b)
{
return (s32)(a - b) > 0;
}
static inline bool fence_after_eq(u32 a, u32 b)
{
return (s32)(a - b) >= 0;
}
static inline unsigned long etnaviv_timeout_to_jiffies(
const struct timespec *timeout)
{
unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
unsigned long start_jiffies = jiffies;
unsigned long remaining_jiffies;
if (time_after(start_jiffies, timeout_jiffies))
remaining_jiffies = 0;
else
remaining_jiffies = timeout_jiffies - start_jiffies;
return remaining_jiffies;
}
#endif /* __ETNAVIV_DRV_H__ */

227
drivers/gpu/drm/etnaviv/etnaviv_dump.c Normal file
View file

@ -0,0 +1,227 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/devcoredump.h>
#include "etnaviv_dump.h"
#include "etnaviv_gem.h"
#include "etnaviv_gpu.h"
#include "etnaviv_mmu.h"
#include "state.xml.h"
#include "state_hi.xml.h"
struct core_dump_iterator {
void *start;
struct etnaviv_dump_object_header *hdr;
void *data;
};
static const unsigned short etnaviv_dump_registers[] = {
VIVS_HI_AXI_STATUS,
VIVS_HI_CLOCK_CONTROL,
VIVS_HI_IDLE_STATE,
VIVS_HI_AXI_CONFIG,
VIVS_HI_INTR_ENBL,
VIVS_HI_CHIP_IDENTITY,
VIVS_HI_CHIP_FEATURE,
VIVS_HI_CHIP_MODEL,
VIVS_HI_CHIP_REV,
VIVS_HI_CHIP_DATE,
VIVS_HI_CHIP_TIME,
VIVS_HI_CHIP_MINOR_FEATURE_0,
VIVS_HI_CACHE_CONTROL,
VIVS_HI_AXI_CONTROL,
VIVS_PM_POWER_CONTROLS,
VIVS_PM_MODULE_CONTROLS,
VIVS_PM_MODULE_STATUS,
VIVS_PM_PULSE_EATER,
VIVS_MC_MMU_FE_PAGE_TABLE,
VIVS_MC_MMU_TX_PAGE_TABLE,
VIVS_MC_MMU_PE_PAGE_TABLE,
VIVS_MC_MMU_PEZ_PAGE_TABLE,
VIVS_MC_MMU_RA_PAGE_TABLE,
VIVS_MC_DEBUG_MEMORY,
VIVS_MC_MEMORY_BASE_ADDR_RA,
VIVS_MC_MEMORY_BASE_ADDR_FE,
VIVS_MC_MEMORY_BASE_ADDR_TX,
VIVS_MC_MEMORY_BASE_ADDR_PEZ,
VIVS_MC_MEMORY_BASE_ADDR_PE,
VIVS_MC_MEMORY_TIMING_CONTROL,
VIVS_MC_BUS_CONFIG,
VIVS_FE_DMA_STATUS,
VIVS_FE_DMA_DEBUG_STATE,
VIVS_FE_DMA_ADDRESS,
VIVS_FE_DMA_LOW,
VIVS_FE_DMA_HIGH,
VIVS_FE_AUTO_FLUSH,
};
static void etnaviv_core_dump_header(struct core_dump_iterator *iter,
u32 type, void *data_end)
{
struct etnaviv_dump_object_header *hdr = iter->hdr;
hdr->magic = cpu_to_le32(ETDUMP_MAGIC);
hdr->type = cpu_to_le32(type);
hdr->file_offset = cpu_to_le32(iter->data - iter->start);
hdr->file_size = cpu_to_le32(data_end - iter->data);
iter->hdr++;
iter->data += hdr->file_size;
}
static void etnaviv_core_dump_registers(struct core_dump_iterator *iter,
struct etnaviv_gpu *gpu)
{
struct etnaviv_dump_registers *reg = iter->data;
unsigned int i;
for (i = 0; i < ARRAY_SIZE(etnaviv_dump_registers); i++, reg++) {
reg->reg = etnaviv_dump_registers[i];
reg->value = gpu_read(gpu, etnaviv_dump_registers[i]);
}
etnaviv_core_dump_header(iter, ETDUMP_BUF_REG, reg);
}
static void etnaviv_core_dump_mmu(struct core_dump_iterator *iter,
struct etnaviv_gpu *gpu, size_t mmu_size)
{
etnaviv_iommu_dump(gpu->mmu, iter->data);
etnaviv_core_dump_header(iter, ETDUMP_BUF_MMU, iter->data + mmu_size);
}
static void etnaviv_core_dump_mem(struct core_dump_iterator *iter, u32 type,
void *ptr, size_t size, u64 iova)
{
memcpy(iter->data, ptr, size);
iter->hdr->iova = cpu_to_le64(iova);
etnaviv_core_dump_header(iter, type, iter->data + size);
}
void etnaviv_core_dump(struct etnaviv_gpu *gpu)
{
struct core_dump_iterator iter;
struct etnaviv_vram_mapping *vram;
struct etnaviv_gem_object *obj;
struct etnaviv_cmdbuf *cmd;
unsigned int n_obj, n_bomap_pages;
size_t file_size, mmu_size;
__le64 *bomap, *bomap_start;
mmu_size = etnaviv_iommu_dump_size(gpu->mmu);
/* We always dump registers, mmu, ring and end marker */
n_obj = 4;
n_bomap_pages = 0;
file_size = ARRAY_SIZE(etnaviv_dump_registers) *
sizeof(struct etnaviv_dump_registers) +
mmu_size + gpu->buffer->size;
/* Add in the active command buffers */
list_for_each_entry(cmd, &gpu->active_cmd_list, node) {
file_size += cmd->size;
n_obj++;
}
/* Add in the active buffer objects */
list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) {
if (!vram->use)
continue;
obj = vram->object;
file_size += obj->base.size;
n_bomap_pages += obj->base.size >> PAGE_SHIFT;
n_obj++;
}
/* If we have any buffer objects, add a bomap object */
if (n_bomap_pages) {
file_size += n_bomap_pages * sizeof(__le64);
n_obj++;
}
/* Add the size of the headers */
file_size += sizeof(*iter.hdr) * n_obj;
/* Allocate the file in vmalloc memory, it's likely to be big */
iter.start = vmalloc(file_size);
if (!iter.start) {
dev_warn(gpu->dev, "failed to allocate devcoredump file\n");
return;
}
/* Point the data member after the headers */
iter.hdr = iter.start;
iter.data = &iter.hdr[n_obj];
memset(iter.hdr, 0, iter.data - iter.start);
etnaviv_core_dump_registers(&iter, gpu);
etnaviv_core_dump_mmu(&iter, gpu, mmu_size);
etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer->vaddr,
gpu->buffer->size, gpu->buffer->paddr);
list_for_each_entry(cmd, &gpu->active_cmd_list, node)
etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, cmd->vaddr,
cmd->size, cmd->paddr);
/* Reserve space for the bomap */
if (n_bomap_pages) {
bomap_start = bomap = iter.data;
memset(bomap, 0, sizeof(*bomap) * n_bomap_pages);
etnaviv_core_dump_header(&iter, ETDUMP_BUF_BOMAP,
bomap + n_bomap_pages);
} else {
/* Silence warning */
bomap_start = bomap = NULL;
}
list_for_each_entry(vram, &gpu->mmu->mappings, mmu_node) {
struct page **pages;
void *vaddr;
if (vram->use == 0)
continue;
obj = vram->object;
pages = etnaviv_gem_get_pages(obj);
if (pages) {
int j;
iter.hdr->data[0] = bomap - bomap_start;
for (j = 0; j < obj->base.size >> PAGE_SHIFT; j++)
*bomap++ = cpu_to_le64(page_to_phys(*pages++));
}
iter.hdr->iova = cpu_to_le64(vram->iova);
vaddr = etnaviv_gem_vaddr(&obj->base);
if (vaddr && !IS_ERR(vaddr))
memcpy(iter.data, vaddr, obj->base.size);
etnaviv_core_dump_header(&iter, ETDUMP_BUF_BO, iter.data +
obj->base.size);
}
etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data);
dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL);
}

54
drivers/gpu/drm/etnaviv/etnaviv_dump.h Normal file
View file

@ -0,0 +1,54 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* Etnaviv devcoredump file definitions
*/
#ifndef ETNAVIV_DUMP_H
#define ETNAVIV_DUMP_H
#include <linux/types.h>
enum {
ETDUMP_MAGIC = 0x414e5445,
ETDUMP_BUF_REG = 0,
ETDUMP_BUF_MMU,
ETDUMP_BUF_RING,
ETDUMP_BUF_CMD,
ETDUMP_BUF_BOMAP,
ETDUMP_BUF_BO,
ETDUMP_BUF_END,
};
struct etnaviv_dump_object_header {
__le32 magic;
__le32 type;
__le32 file_offset;
__le32 file_size;
__le64 iova;
__le32 data[2];
};
/* Registers object, an array of these */
struct etnaviv_dump_registers {
__le32 reg;
__le32 value;
};
#ifdef __KERNEL__
struct etnaviv_gpu;
void etnaviv_core_dump(struct etnaviv_gpu *gpu);
#endif
#endif

897
drivers/gpu/drm/etnaviv/etnaviv_gem.c Normal file
View file

@ -0,0 +1,897 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/spinlock.h>
#include <linux/shmem_fs.h>
#include "etnaviv_drv.h"
#include "etnaviv_gem.h"
#include "etnaviv_gpu.h"
#include "etnaviv_mmu.h"
static void etnaviv_gem_scatter_map(struct etnaviv_gem_object *etnaviv_obj)
{
struct drm_device *dev = etnaviv_obj->base.dev;
struct sg_table *sgt = etnaviv_obj->sgt;
/*
* For non-cached buffers, ensure the new pages are clean
* because display controller, GPU, etc. are not coherent.
*/
if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
dma_map_sg(dev->dev, sgt->sgl, sgt->nents, DMA_BIDIRECTIONAL);
}
static void etnaviv_gem_scatterlist_unmap(struct etnaviv_gem_object *etnaviv_obj)
{
struct drm_device *dev = etnaviv_obj->base.dev;
struct sg_table *sgt = etnaviv_obj->sgt;
/*
* For non-cached buffers, ensure the new pages are clean
* because display controller, GPU, etc. are not coherent:
*
* WARNING: The DMA API does not support concurrent CPU
* and device access to the memory area. With BIDIRECTIONAL,
* we will clean the cache lines which overlap the region,
* and invalidate all cache lines (partially) contained in
* the region.
*
* If you have dirty data in the overlapping cache lines,
* that will corrupt the GPU-written data. If you have
* written into the remainder of the region, this can
* discard those writes.
*/
if (etnaviv_obj->flags & ETNA_BO_CACHE_MASK)
dma_unmap_sg(dev->dev, sgt->sgl, sgt->nents, DMA_BIDIRECTIONAL);
}
/* called with etnaviv_obj->lock held */
static int etnaviv_gem_shmem_get_pages(struct etnaviv_gem_object *etnaviv_obj)
{
struct drm_device *dev = etnaviv_obj->base.dev;
struct page **p = drm_gem_get_pages(&etnaviv_obj->base);
if (IS_ERR(p)) {
dev_err(dev->dev, "could not get pages: %ld\n", PTR_ERR(p));
return PTR_ERR(p);
}
etnaviv_obj->pages = p;
return 0;
}
static void put_pages(struct etnaviv_gem_object *etnaviv_obj)
{
if (etnaviv_obj->sgt) {
etnaviv_gem_scatterlist_unmap(etnaviv_obj);
sg_free_table(etnaviv_obj->sgt);
kfree(etnaviv_obj->sgt);
etnaviv_obj->sgt = NULL;
}
if (etnaviv_obj->pages) {
drm_gem_put_pages(&etnaviv_obj->base, etnaviv_obj->pages,
true, false);
etnaviv_obj->pages = NULL;
}
}
struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *etnaviv_obj)
{
int ret;
lockdep_assert_held(&etnaviv_obj->lock);
if (!etnaviv_obj->pages) {
ret = etnaviv_obj->ops->get_pages(etnaviv_obj);
if (ret < 0)
return ERR_PTR(ret);
}
if (!etnaviv_obj->sgt) {
struct drm_device *dev = etnaviv_obj->base.dev;
int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
struct sg_table *sgt;
sgt = drm_prime_pages_to_sg(etnaviv_obj->pages, npages);
if (IS_ERR(sgt)) {
dev_err(dev->dev, "failed to allocate sgt: %ld\n",
PTR_ERR(sgt));
return ERR_CAST(sgt);
}
etnaviv_obj->sgt = sgt;
etnaviv_gem_scatter_map(etnaviv_obj);
}
return etnaviv_obj->pages;
}
void etnaviv_gem_put_pages(struct etnaviv_gem_object *etnaviv_obj)
{
lockdep_assert_held(&etnaviv_obj->lock);
/* when we start tracking the pin count, then do something here */
}
static int etnaviv_gem_mmap_obj(struct drm_gem_object *obj,
struct vm_area_struct *vma)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
pgprot_t vm_page_prot;
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_flags |= VM_MIXEDMAP;
vm_page_prot = vm_get_page_prot(vma->vm_flags);
if (etnaviv_obj->flags & ETNA_BO_WC) {
vma->vm_page_prot = pgprot_writecombine(vm_page_prot);
} else if (etnaviv_obj->flags & ETNA_BO_UNCACHED) {
vma->vm_page_prot = pgprot_noncached(vm_page_prot);
} else {
/*
* Shunt off cached objs to shmem file so they have their own
* address_space (so unmap_mapping_range does what we want,
* in particular in the case of mmap'd dmabufs)
*/
fput(vma->vm_file);
get_file(obj->filp);
vma->vm_pgoff = 0;
vma->vm_file = obj->filp;
vma->vm_page_prot = vm_page_prot;
}
return 0;
}
int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct etnaviv_gem_object *obj;
int ret;
ret = drm_gem_mmap(filp, vma);
if (ret) {
DBG("mmap failed: %d", ret);
return ret;
}
obj = to_etnaviv_bo(vma->vm_private_data);
return etnaviv_gem_mmap_obj(vma->vm_private_data, vma);
}
int etnaviv_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct drm_gem_object *obj = vma->vm_private_data;
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct page **pages, *page;
pgoff_t pgoff;
int ret;
/*
* Make sure we don't parallel update on a fault, nor move or remove
* something from beneath our feet. Note that vm_insert_page() is
* specifically coded to take care of this, so we don't have to.
*/
ret = mutex_lock_interruptible(&etnaviv_obj->lock);
if (ret)
goto out;
/* make sure we have pages attached now */
pages = etnaviv_gem_get_pages(etnaviv_obj);
mutex_unlock(&etnaviv_obj->lock);
if (IS_ERR(pages)) {
ret = PTR_ERR(pages);
goto out;
}
/* We don't use vmf->pgoff since that has the fake offset: */
pgoff = ((unsigned long)vmf->virtual_address -
vma->vm_start) >> PAGE_SHIFT;
page = pages[pgoff];
VERB("Inserting %p pfn %lx, pa %lx", vmf->virtual_address,
page_to_pfn(page), page_to_pfn(page) << PAGE_SHIFT);
ret = vm_insert_page(vma, (unsigned long)vmf->virtual_address, page);
out:
switch (ret) {
case -EAGAIN:
case 0:
case -ERESTARTSYS:
case -EINTR:
case -EBUSY:
/*
* EBUSY is ok: this just means that another thread
* already did the job.
*/
return VM_FAULT_NOPAGE;
case -ENOMEM:
return VM_FAULT_OOM;
default:
return VM_FAULT_SIGBUS;
}
}
int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset)
{
int ret;
/* Make it mmapable */
ret = drm_gem_create_mmap_offset(obj);
if (ret)
dev_err(obj->dev->dev, "could not allocate mmap offset\n");
else
*offset = drm_vma_node_offset_addr(&obj->vma_node);
return ret;
}
static struct etnaviv_vram_mapping *
etnaviv_gem_get_vram_mapping(struct etnaviv_gem_object *obj,
struct etnaviv_iommu *mmu)
{
struct etnaviv_vram_mapping *mapping;
list_for_each_entry(mapping, &obj->vram_list, obj_node) {
if (mapping->mmu == mmu)
return mapping;
}
return NULL;
}
int etnaviv_gem_get_iova(struct etnaviv_gpu *gpu,
struct drm_gem_object *obj, u32 *iova)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping;
struct page **pages;
int ret = 0;
mutex_lock(&etnaviv_obj->lock);
mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);
if (mapping) {
/*
* Holding the object lock prevents the use count changing
* beneath us. If the use count is zero, the MMU might be
* reaping this object, so take the lock and re-check that
* the MMU owns this mapping to close this race.
*/
if (mapping->use == 0) {
mutex_lock(&gpu->mmu->lock);
if (mapping->mmu == gpu->mmu)
mapping->use += 1;
else
mapping = NULL;
mutex_unlock(&gpu->mmu->lock);
if (mapping)
goto out;
} else {
mapping->use += 1;
goto out;
}
}
pages = etnaviv_gem_get_pages(etnaviv_obj);
if (IS_ERR(pages)) {
ret = PTR_ERR(pages);
goto out;
}
/*
* See if we have a reaped vram mapping we can re-use before
* allocating a fresh mapping.
*/
mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, NULL);
if (!mapping) {
mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
if (!mapping)
return -ENOMEM;
INIT_LIST_HEAD(&mapping->scan_node);
mapping->object = etnaviv_obj;
} else {
list_del(&mapping->obj_node);
}
mapping->mmu = gpu->mmu;
mapping->use = 1;
ret = etnaviv_iommu_map_gem(gpu->mmu, etnaviv_obj, gpu->memory_base,
mapping);
if (ret < 0)
kfree(mapping);
else
list_add_tail(&mapping->obj_node, &etnaviv_obj->vram_list);
out:
mutex_unlock(&etnaviv_obj->lock);
if (!ret) {
/* Take a reference on the object */
drm_gem_object_reference(obj);
*iova = mapping->iova;
}
return ret;
}
void etnaviv_gem_put_iova(struct etnaviv_gpu *gpu, struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping;
mutex_lock(&etnaviv_obj->lock);
mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);
WARN_ON(mapping->use == 0);
mapping->use -= 1;
mutex_unlock(&etnaviv_obj->lock);
drm_gem_object_unreference_unlocked(obj);
}
void *etnaviv_gem_vaddr(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
mutex_lock(&etnaviv_obj->lock);
if (!etnaviv_obj->vaddr) {
struct page **pages = etnaviv_gem_get_pages(etnaviv_obj);
if (IS_ERR(pages))
return ERR_CAST(pages);
etnaviv_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT,
VM_MAP, pgprot_writecombine(PAGE_KERNEL));
}
mutex_unlock(&etnaviv_obj->lock);
return etnaviv_obj->vaddr;
}
static inline enum dma_data_direction etnaviv_op_to_dma_dir(u32 op)
{
if (op & ETNA_PREP_READ)
return DMA_FROM_DEVICE;
else if (op & ETNA_PREP_WRITE)
return DMA_TO_DEVICE;
else
return DMA_BIDIRECTIONAL;
}
int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
struct timespec *timeout)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct drm_device *dev = obj->dev;
bool write = !!(op & ETNA_PREP_WRITE);
int ret;
if (op & ETNA_PREP_NOSYNC) {
if (!reservation_object_test_signaled_rcu(etnaviv_obj->resv,
write))
return -EBUSY;
} else {
unsigned long remain = etnaviv_timeout_to_jiffies(timeout);
ret = reservation_object_wait_timeout_rcu(etnaviv_obj->resv,
write, true, remain);
if (ret <= 0)
return ret == 0 ? -ETIMEDOUT : ret;
}
if (etnaviv_obj->flags & ETNA_BO_CACHED) {
if (!etnaviv_obj->sgt) {
void *ret;
mutex_lock(&etnaviv_obj->lock);
ret = etnaviv_gem_get_pages(etnaviv_obj);
mutex_unlock(&etnaviv_obj->lock);
if (IS_ERR(ret))
return PTR_ERR(ret);
}
dma_sync_sg_for_cpu(dev->dev, etnaviv_obj->sgt->sgl,
etnaviv_obj->sgt->nents,
etnaviv_op_to_dma_dir(op));
etnaviv_obj->last_cpu_prep_op = op;
}
return 0;
}
int etnaviv_gem_cpu_fini(struct drm_gem_object *obj)
{
struct drm_device *dev = obj->dev;
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
if (etnaviv_obj->flags & ETNA_BO_CACHED) {
/* fini without a prep is almost certainly a userspace error */
WARN_ON(etnaviv_obj->last_cpu_prep_op == 0);
dma_sync_sg_for_device(dev->dev, etnaviv_obj->sgt->sgl,
etnaviv_obj->sgt->nents,
etnaviv_op_to_dma_dir(etnaviv_obj->last_cpu_prep_op));
etnaviv_obj->last_cpu_prep_op = 0;
}
return 0;
}
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
struct timespec *timeout)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
return etnaviv_gpu_wait_obj_inactive(gpu, etnaviv_obj, timeout);
}
#ifdef CONFIG_DEBUG_FS
static void etnaviv_gem_describe_fence(struct fence *fence,
const char *type, struct seq_file *m)
{
if (!test_bit(FENCE_FLAG_SIGNALED_BIT, &fence->flags))
seq_printf(m, "\t%9s: %s %s seq %u\n",
type,
fence->ops->get_driver_name(fence),
fence->ops->get_timeline_name(fence),
fence->seqno);
}
static void etnaviv_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct reservation_object *robj = etnaviv_obj->resv;
struct reservation_object_list *fobj;
struct fence *fence;
unsigned long off = drm_vma_node_start(&obj->vma_node);
seq_printf(m, "%08x: %c %2d (%2d) %08lx %p %zd\n",
etnaviv_obj->flags, is_active(etnaviv_obj) ? 'A' : 'I',
obj->name, obj->refcount.refcount.counter,
off, etnaviv_obj->vaddr, obj->size);
rcu_read_lock();
fobj = rcu_dereference(robj->fence);
if (fobj) {
unsigned int i, shared_count = fobj->shared_count;
for (i = 0; i < shared_count; i++) {
fence = rcu_dereference(fobj->shared[i]);
etnaviv_gem_describe_fence(fence, "Shared", m);
}
}
fence = rcu_dereference(robj->fence_excl);
if (fence)
etnaviv_gem_describe_fence(fence, "Exclusive", m);
rcu_read_unlock();
}
void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
struct seq_file *m)
{
struct etnaviv_gem_object *etnaviv_obj;
int count = 0;
size_t size = 0;
mutex_lock(&priv->gem_lock);
list_for_each_entry(etnaviv_obj, &priv->gem_list, gem_node) {
struct drm_gem_object *obj = &etnaviv_obj->base;
seq_puts(m, " ");
etnaviv_gem_describe(obj, m);
count++;
size += obj->size;
}
mutex_unlock(&priv->gem_lock);
seq_printf(m, "Total %d objects, %zu bytes\n", count, size);
}
#endif
static void etnaviv_gem_shmem_release(struct etnaviv_gem_object *etnaviv_obj)
{
if (etnaviv_obj->vaddr)
vunmap(etnaviv_obj->vaddr);
put_pages(etnaviv_obj);
}
static const struct etnaviv_gem_ops etnaviv_gem_shmem_ops = {
.get_pages = etnaviv_gem_shmem_get_pages,
.release = etnaviv_gem_shmem_release,
};
void etnaviv_gem_free_object(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping, *tmp;
/* object should not be active */
WARN_ON(is_active(etnaviv_obj));
list_del(&etnaviv_obj->gem_node);
list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,
obj_node) {
struct etnaviv_iommu *mmu = mapping->mmu;
WARN_ON(mapping->use);
if (mmu)
etnaviv_iommu_unmap_gem(mmu, mapping);
list_del(&mapping->obj_node);
kfree(mapping);
}
drm_gem_free_mmap_offset(obj);
etnaviv_obj->ops->release(etnaviv_obj);
if (etnaviv_obj->resv == &etnaviv_obj->_resv)
reservation_object_fini(&etnaviv_obj->_resv);
drm_gem_object_release(obj);
kfree(etnaviv_obj);
}
int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
mutex_lock(&priv->gem_lock);
list_add_tail(&etnaviv_obj->gem_node, &priv->gem_list);
mutex_unlock(&priv->gem_lock);
return 0;
}
static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
struct drm_gem_object **obj)
{
struct etnaviv_gem_object *etnaviv_obj;
unsigned sz = sizeof(*etnaviv_obj);
bool valid = true;
/* validate flags */
switch (flags & ETNA_BO_CACHE_MASK) {
case ETNA_BO_UNCACHED:
case ETNA_BO_CACHED:
case ETNA_BO_WC:
break;
default:
valid = false;
}
if (!valid) {
dev_err(dev->dev, "invalid cache flag: %x\n",
(flags & ETNA_BO_CACHE_MASK));
return -EINVAL;
}
etnaviv_obj = kzalloc(sz, GFP_KERNEL);
if (!etnaviv_obj)
return -ENOMEM;
etnaviv_obj->flags = flags;
etnaviv_obj->ops = ops;
if (robj) {
etnaviv_obj->resv = robj;
} else {
etnaviv_obj->resv = &etnaviv_obj->_resv;
reservation_object_init(&etnaviv_obj->_resv);
}
mutex_init(&etnaviv_obj->lock);
INIT_LIST_HEAD(&etnaviv_obj->vram_list);
*obj = &etnaviv_obj->base;
return 0;
}
static struct drm_gem_object *__etnaviv_gem_new(struct drm_device *dev,
u32 size, u32 flags)
{
struct drm_gem_object *obj = NULL;
int ret;
size = PAGE_ALIGN(size);
ret = etnaviv_gem_new_impl(dev, size, flags, NULL,
&etnaviv_gem_shmem_ops, &obj);
if (ret)
goto fail;
ret = drm_gem_object_init(dev, obj, size);
if (ret == 0) {
struct address_space *mapping;
/*
* Our buffers are kept pinned, so allocating them
* from the MOVABLE zone is a really bad idea, and
* conflicts with CMA. See coments above new_inode()
* why this is required _and_ expected if you're
* going to pin these pages.
*/
mapping = file_inode(obj->filp)->i_mapping;
mapping_set_gfp_mask(mapping, GFP_HIGHUSER);
}
if (ret)
goto fail;
return obj;
fail:
if (obj)
drm_gem_object_unreference_unlocked(obj);
return ERR_PTR(ret);
}
/* convenience method to construct a GEM buffer object, and userspace handle */
int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
u32 size, u32 flags, u32 *handle)
{
struct drm_gem_object *obj;
int ret;
obj = __etnaviv_gem_new(dev, size, flags);
if (IS_ERR(obj))
return PTR_ERR(obj);
ret = etnaviv_gem_obj_add(dev, obj);
if (ret < 0) {
drm_gem_object_unreference_unlocked(obj);
return ret;
}
ret = drm_gem_handle_create(file, obj, handle);
/* drop reference from allocate - handle holds it now */
drm_gem_object_unreference_unlocked(obj);
return ret;
}
struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev,
u32 size, u32 flags)
{
struct drm_gem_object *obj;
int ret;
obj = __etnaviv_gem_new(dev, size, flags);
if (IS_ERR(obj))
return obj;
ret = etnaviv_gem_obj_add(dev, obj);
if (ret < 0) {
drm_gem_object_unreference_unlocked(obj);
return ERR_PTR(ret);
}
return obj;
}
int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
struct etnaviv_gem_object **res)
{
struct drm_gem_object *obj;
int ret;
ret = etnaviv_gem_new_impl(dev, size, flags, robj, ops, &obj);
if (ret)
return ret;
drm_gem_private_object_init(dev, obj, size);
*res = to_etnaviv_bo(obj);
return 0;
}
struct get_pages_work {
struct work_struct work;
struct mm_struct *mm;
struct task_struct *task;
struct etnaviv_gem_object *etnaviv_obj;
};
static struct page **etnaviv_gem_userptr_do_get_pages(
struct etnaviv_gem_object *etnaviv_obj, struct mm_struct *mm, struct task_struct *task)
{
int ret = 0, pinned, npages = etnaviv_obj->base.size >> PAGE_SHIFT;
struct page **pvec;
uintptr_t ptr;
pvec = drm_malloc_ab(npages, sizeof(struct page *));
if (!pvec)
return ERR_PTR(-ENOMEM);
pinned = 0;
ptr = etnaviv_obj->userptr.ptr;
down_read(&mm->mmap_sem);
while (pinned < npages) {
ret = get_user_pages(task, mm, ptr, npages - pinned,
!etnaviv_obj->userptr.ro, 0,
pvec + pinned, NULL);
if (ret < 0)
break;
ptr += ret * PAGE_SIZE;
pinned += ret;
}
up_read(&mm->mmap_sem);
if (ret < 0) {
release_pages(pvec, pinned, 0);
drm_free_large(pvec);
return ERR_PTR(ret);
}
return pvec;
}
static void __etnaviv_gem_userptr_get_pages(struct work_struct *_work)
{
struct get_pages_work *work = container_of(_work, typeof(*work), work);
struct etnaviv_gem_object *etnaviv_obj = work->etnaviv_obj;
struct page **pvec;
pvec = etnaviv_gem_userptr_do_get_pages(etnaviv_obj, work->mm, work->task);
mutex_lock(&etnaviv_obj->lock);
if (IS_ERR(pvec)) {
etnaviv_obj->userptr.work = ERR_CAST(pvec);
} else {
etnaviv_obj->userptr.work = NULL;
etnaviv_obj->pages = pvec;
}
mutex_unlock(&etnaviv_obj->lock);
drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
mmput(work->mm);
put_task_struct(work->task);
kfree(work);
}
static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj)
{
struct page **pvec = NULL;
struct get_pages_work *work;
struct mm_struct *mm;
int ret, pinned, npages = etnaviv_obj->base.size >> PAGE_SHIFT;
if (etnaviv_obj->userptr.work) {
if (IS_ERR(etnaviv_obj->userptr.work)) {
ret = PTR_ERR(etnaviv_obj->userptr.work);
etnaviv_obj->userptr.work = NULL;
} else {
ret = -EAGAIN;
}
return ret;
}
mm = get_task_mm(etnaviv_obj->userptr.task);
pinned = 0;
if (mm == current->mm) {
pvec = drm_malloc_ab(npages, sizeof(struct page *));
if (!pvec) {
mmput(mm);
return -ENOMEM;
}
pinned = __get_user_pages_fast(etnaviv_obj->userptr.ptr, npages,
!etnaviv_obj->userptr.ro, pvec);
if (pinned < 0) {
drm_free_large(pvec);
mmput(mm);
return pinned;
}
if (pinned == npages) {
etnaviv_obj->pages = pvec;
mmput(mm);
return 0;
}
}
release_pages(pvec, pinned, 0);
drm_free_large(pvec);
work = kmalloc(sizeof(*work), GFP_KERNEL);
if (!work) {
mmput(mm);
return -ENOMEM;
}
get_task_struct(current);
drm_gem_object_reference(&etnaviv_obj->base);
work->mm = mm;
work->task = current;
work->etnaviv_obj = etnaviv_obj;
etnaviv_obj->userptr.work = &work->work;
INIT_WORK(&work->work, __etnaviv_gem_userptr_get_pages);
etnaviv_queue_work(etnaviv_obj->base.dev, &work->work);
return -EAGAIN;
}
static void etnaviv_gem_userptr_release(struct etnaviv_gem_object *etnaviv_obj)
{
if (etnaviv_obj->sgt) {
etnaviv_gem_scatterlist_unmap(etnaviv_obj);
sg_free_table(etnaviv_obj->sgt);
kfree(etnaviv_obj->sgt);
}
if (etnaviv_obj->pages) {
int npages = etnaviv_obj->base.size >> PAGE_SHIFT;
release_pages(etnaviv_obj->pages, npages, 0);
drm_free_large(etnaviv_obj->pages);
}
put_task_struct(etnaviv_obj->userptr.task);
}
static const struct etnaviv_gem_ops etnaviv_gem_userptr_ops = {
.get_pages = etnaviv_gem_userptr_get_pages,
.release = etnaviv_gem_userptr_release,
};
int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
uintptr_t ptr, u32 size, u32 flags, u32 *handle)
{
struct etnaviv_gem_object *etnaviv_obj;
int ret;
ret = etnaviv_gem_new_private(dev, size, ETNA_BO_CACHED, NULL,
&etnaviv_gem_userptr_ops, &etnaviv_obj);
if (ret)
return ret;
etnaviv_obj->userptr.ptr = ptr;
etnaviv_obj->userptr.task = current;
etnaviv_obj->userptr.ro = !(flags & ETNA_USERPTR_WRITE);
get_task_struct(current);
ret = etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
if (ret) {
drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
return ret;
}
ret = drm_gem_handle_create(file, &etnaviv_obj->base, handle);
/* drop reference from allocate - handle holds it now */
drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
return ret;
}

117
drivers/gpu/drm/etnaviv/etnaviv_gem.h Normal file
View file

@ -0,0 +1,117 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ETNAVIV_GEM_H__
#define __ETNAVIV_GEM_H__
#include <linux/reservation.h>
#include "etnaviv_drv.h"
struct etnaviv_gem_ops;
struct etnaviv_gem_object;
struct etnaviv_gem_userptr {
uintptr_t ptr;
struct task_struct *task;
struct work_struct *work;
bool ro;
};
struct etnaviv_vram_mapping {
struct list_head obj_node;
struct list_head scan_node;
struct list_head mmu_node;
struct etnaviv_gem_object *object;
struct etnaviv_iommu *mmu;
struct drm_mm_node vram_node;
unsigned int use;
u32 iova;
};
struct etnaviv_gem_object {
struct drm_gem_object base;
const struct etnaviv_gem_ops *ops;
struct mutex lock;
u32 flags;
struct list_head gem_node;
struct etnaviv_gpu *gpu; /* non-null if active */
atomic_t gpu_active;
u32 access;
struct page **pages;
struct sg_table *sgt;
void *vaddr;
/* normally (resv == &_resv) except for imported bo's */
struct reservation_object *resv;
struct reservation_object _resv;
struct list_head vram_list;
/* cache maintenance */
u32 last_cpu_prep_op;
struct etnaviv_gem_userptr userptr;
};
static inline
struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
{
return container_of(obj, struct etnaviv_gem_object, base);
}
struct etnaviv_gem_ops {
int (*get_pages)(struct etnaviv_gem_object *);
void (*release)(struct etnaviv_gem_object *);
};
static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
{
return atomic_read(&etnaviv_obj->gpu_active) != 0;
}
#define MAX_CMDS 4
/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
* associated with the cmdstream submission for synchronization (and
* make it easier to unwind when things go wrong, etc). This only
* lasts for the duration of the submit-ioctl.
*/
struct etnaviv_gem_submit {
struct drm_device *dev;
struct etnaviv_gpu *gpu;
struct ww_acquire_ctx ticket;
u32 fence;
unsigned int nr_bos;
struct {
u32 flags;
struct etnaviv_gem_object *obj;
u32 iova;
} bos[0];
};
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
struct timespec *timeout);
int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
struct reservation_object *robj, const struct etnaviv_gem_ops *ops,
struct etnaviv_gem_object **res);
int etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
#endif /* __ETNAVIV_GEM_H__ */

122
drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c Normal file
View file

@ -0,0 +1,122 @@
/*
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/dma-buf.h>
#include "etnaviv_drv.h"
#include "etnaviv_gem.h"
struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
BUG_ON(!etnaviv_obj->sgt); /* should have already pinned! */
return etnaviv_obj->sgt;
}
void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj)
{
return etnaviv_gem_vaddr(obj);
}
void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
/* TODO msm_gem_vunmap() */
}
int etnaviv_gem_prime_pin(struct drm_gem_object *obj)
{
if (!obj->import_attach) {
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
mutex_lock(&etnaviv_obj->lock);
etnaviv_gem_get_pages(etnaviv_obj);
mutex_unlock(&etnaviv_obj->lock);
}
return 0;
}
void etnaviv_gem_prime_unpin(struct drm_gem_object *obj)
{
if (!obj->import_attach) {
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
mutex_lock(&etnaviv_obj->lock);
etnaviv_gem_put_pages(to_etnaviv_bo(obj));
mutex_unlock(&etnaviv_obj->lock);
}
}
static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj)
{
if (etnaviv_obj->vaddr)
dma_buf_vunmap(etnaviv_obj->base.import_attach->dmabuf,
etnaviv_obj->vaddr);
/* Don't drop the pages for imported dmabuf, as they are not
* ours, just free the array we allocated:
*/
if (etnaviv_obj->pages)
drm_free_large(etnaviv_obj->pages);
drm_prime_gem_destroy(&etnaviv_obj->base, etnaviv_obj->sgt);
}
static const struct etnaviv_gem_ops etnaviv_gem_prime_ops = {
/* .get_pages should never be called */
.release = etnaviv_gem_prime_release,
};
struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach, struct sg_table *sgt)
{
struct etnaviv_gem_object *etnaviv_obj;
size_t size = PAGE_ALIGN(attach->dmabuf->size);
int ret, npages;
ret = etnaviv_gem_new_private(dev, size, ETNA_BO_WC,
attach->dmabuf->resv,
&etnaviv_gem_prime_ops, &etnaviv_obj);
if (ret < 0)
return ERR_PTR(ret);
npages = size / PAGE_SIZE;
etnaviv_obj->sgt = sgt;
etnaviv_obj->pages = drm_malloc_ab(npages, sizeof(struct page *));
if (!etnaviv_obj->pages) {
ret = -ENOMEM;
goto fail;
}
ret = drm_prime_sg_to_page_addr_arrays(sgt, etnaviv_obj->pages,
NULL, npages);
if (ret)
goto fail;
ret = etnaviv_gem_obj_add(dev, &etnaviv_obj->base);
if (ret)
goto fail;
return &etnaviv_obj->base;
fail:
drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
return ERR_PTR(ret);
}

443
drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c Normal file
View file

@ -0,0 +1,443 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/reservation.h>
#include "etnaviv_drv.h"
#include "etnaviv_gpu.h"
#include "etnaviv_gem.h"
/*
* Cmdstream submission:
*/
#define BO_INVALID_FLAGS ~(ETNA_SUBMIT_BO_READ | ETNA_SUBMIT_BO_WRITE)
/* make sure these don't conflict w/ ETNAVIV_SUBMIT_BO_x */
#define BO_LOCKED 0x4000
#define BO_PINNED 0x2000
static inline void __user *to_user_ptr(u64 address)
{
return (void __user *)(uintptr_t)address;
}
static struct etnaviv_gem_submit *submit_create(struct drm_device *dev,
struct etnaviv_gpu *gpu, size_t nr)
{
struct etnaviv_gem_submit *submit;
size_t sz = size_vstruct(nr, sizeof(submit->bos[0]), sizeof(*submit));
submit = kmalloc(sz, GFP_TEMPORARY | __GFP_NOWARN | __GFP_NORETRY);
if (submit) {
submit->dev = dev;
submit->gpu = gpu;
/* initially, until copy_from_user() and bo lookup succeeds: */
submit->nr_bos = 0;
ww_acquire_init(&submit->ticket, &reservation_ww_class);
}
return submit;
}
static int submit_lookup_objects(struct etnaviv_gem_submit *submit,
struct drm_file *file, struct drm_etnaviv_gem_submit_bo *submit_bos,
unsigned nr_bos)
{
struct drm_etnaviv_gem_submit_bo *bo;
unsigned i;
int ret = 0;
spin_lock(&file->table_lock);
for (i = 0, bo = submit_bos; i < nr_bos; i++, bo++) {
struct drm_gem_object *obj;
if (bo->flags & BO_INVALID_FLAGS) {
DRM_ERROR("invalid flags: %x\n", bo->flags);
ret = -EINVAL;
goto out_unlock;
}
submit->bos[i].flags = bo->flags;
/* normally use drm_gem_object_lookup(), but for bulk lookup
* all under single table_lock just hit object_idr directly:
*/
obj = idr_find(&file->object_idr, bo->handle);
if (!obj) {
DRM_ERROR("invalid handle %u at index %u\n",
bo->handle, i);
ret = -EINVAL;
goto out_unlock;
}
/*
* Take a refcount on the object. The file table lock
* prevents the object_idr's refcount on this being dropped.
*/
drm_gem_object_reference(obj);
submit->bos[i].obj = to_etnaviv_bo(obj);
}
out_unlock:
submit->nr_bos = i;
spin_unlock(&file->table_lock);
return ret;
}
static void submit_unlock_object(struct etnaviv_gem_submit *submit, int i)
{
if (submit->bos[i].flags & BO_LOCKED) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
ww_mutex_unlock(&etnaviv_obj->resv->lock);
submit->bos[i].flags &= ~BO_LOCKED;
}
}
static int submit_lock_objects(struct etnaviv_gem_submit *submit)
{
int contended, slow_locked = -1, i, ret = 0;
retry:
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
if (slow_locked == i)
slow_locked = -1;
contended = i;
if (!(submit->bos[i].flags & BO_LOCKED)) {
ret = ww_mutex_lock_interruptible(&etnaviv_obj->resv->lock,
&submit->ticket);
if (ret == -EALREADY)
DRM_ERROR("BO at index %u already on submit list\n",
i);
if (ret)
goto fail;
submit->bos[i].flags |= BO_LOCKED;
}
}
ww_acquire_done(&submit->ticket);
return 0;
fail:
for (; i >= 0; i--)
submit_unlock_object(submit, i);
if (slow_locked > 0)
submit_unlock_object(submit, slow_locked);
if (ret == -EDEADLK) {
struct etnaviv_gem_object *etnaviv_obj;
etnaviv_obj = submit->bos[contended].obj;
/* we lost out in a seqno race, lock and retry.. */
ret = ww_mutex_lock_slow_interruptible(&etnaviv_obj->resv->lock,
&submit->ticket);
if (!ret) {
submit->bos[contended].flags |= BO_LOCKED;
slow_locked = contended;
goto retry;
}
}
return ret;
}
static int submit_fence_sync(const struct etnaviv_gem_submit *submit)
{
unsigned int context = submit->gpu->fence_context;
int i, ret = 0;
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
bool write = submit->bos[i].flags & ETNA_SUBMIT_BO_WRITE;
ret = etnaviv_gpu_fence_sync_obj(etnaviv_obj, context, write);
if (ret)
break;
}
return ret;
}
static void submit_unpin_objects(struct etnaviv_gem_submit *submit)
{
int i;
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
if (submit->bos[i].flags & BO_PINNED)
etnaviv_gem_put_iova(submit->gpu, &etnaviv_obj->base);
submit->bos[i].iova = 0;
submit->bos[i].flags &= ~BO_PINNED;
}
}
static int submit_pin_objects(struct etnaviv_gem_submit *submit)
{
int i, ret = 0;
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
u32 iova;
ret = etnaviv_gem_get_iova(submit->gpu, &etnaviv_obj->base,
&iova);
if (ret)
break;
submit->bos[i].flags |= BO_PINNED;
submit->bos[i].iova = iova;
}
return ret;
}
static int submit_bo(struct etnaviv_gem_submit *submit, u32 idx,
struct etnaviv_gem_object **obj, u32 *iova)
{
if (idx >= submit->nr_bos) {
DRM_ERROR("invalid buffer index: %u (out of %u)\n",
idx, submit->nr_bos);
return -EINVAL;
}
if (obj)
*obj = submit->bos[idx].obj;
if (iova)
*iova = submit->bos[idx].iova;
return 0;
}
/* process the reloc's and patch up the cmdstream as needed: */
static int submit_reloc(struct etnaviv_gem_submit *submit, void *stream,
u32 size, const struct drm_etnaviv_gem_submit_reloc *relocs,
u32 nr_relocs)
{
u32 i, last_offset = 0;
u32 *ptr = stream;
int ret;
for (i = 0; i < nr_relocs; i++) {
const struct drm_etnaviv_gem_submit_reloc *r = relocs + i;
struct etnaviv_gem_object *bobj;
u32 iova, off;
if (unlikely(r->flags)) {
DRM_ERROR("invalid reloc flags\n");
return -EINVAL;
}
if (r->submit_offset % 4) {
DRM_ERROR("non-aligned reloc offset: %u\n",
r->submit_offset);
return -EINVAL;
}
/* offset in dwords: */
off = r->submit_offset / 4;
if ((off >= size ) ||
(off < last_offset)) {
DRM_ERROR("invalid offset %u at reloc %u\n", off, i);
return -EINVAL;
}
ret = submit_bo(submit, r->reloc_idx, &bobj, &iova);
if (ret)
return ret;
if (r->reloc_offset >=
bobj->base.size - sizeof(*ptr)) {
DRM_ERROR("relocation %u outside object", i);
return -EINVAL;
}
ptr[off] = iova + r->reloc_offset;
last_offset = off;
}
return 0;
}
static void submit_cleanup(struct etnaviv_gem_submit *submit)
{
unsigned i;
for (i = 0; i < submit->nr_bos; i++) {
struct etnaviv_gem_object *etnaviv_obj = submit->bos[i].obj;
submit_unlock_object(submit, i);
drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
}
ww_acquire_fini(&submit->ticket);
kfree(submit);
}
int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_etnaviv_gem_submit *args = data;
struct drm_etnaviv_gem_submit_reloc *relocs;
struct drm_etnaviv_gem_submit_bo *bos;
struct etnaviv_gem_submit *submit;
struct etnaviv_cmdbuf *cmdbuf;
struct etnaviv_gpu *gpu;
void *stream;
int ret;
if (args->pipe >= ETNA_MAX_PIPES)
return -EINVAL;
gpu = priv->gpu[args->pipe];
if (!gpu)
return -ENXIO;
if (args->stream_size % 4) {
DRM_ERROR("non-aligned cmdstream buffer size: %u\n",
args->stream_size);
return -EINVAL;
}
if (args->exec_state != ETNA_PIPE_3D &&
args->exec_state != ETNA_PIPE_2D &&
args->exec_state != ETNA_PIPE_VG) {
DRM_ERROR("invalid exec_state: 0x%x\n", args->exec_state);
return -EINVAL;
}
/*
* Copy the command submission and bo array to kernel space in
* one go, and do this outside of any locks.
*/
bos = drm_malloc_ab(args->nr_bos, sizeof(*bos));
relocs = drm_malloc_ab(args->nr_relocs, sizeof(*relocs));
stream = drm_malloc_ab(1, args->stream_size);
cmdbuf = etnaviv_gpu_cmdbuf_new(gpu, ALIGN(args->stream_size, 8) + 8,
args->nr_bos);
if (!bos || !relocs || !stream || !cmdbuf) {
ret = -ENOMEM;
goto err_submit_cmds;
}
cmdbuf->exec_state = args->exec_state;
cmdbuf->ctx = file->driver_priv;
ret = copy_from_user(bos, to_user_ptr(args->bos),
args->nr_bos * sizeof(*bos));
if (ret) {
ret = -EFAULT;
goto err_submit_cmds;
}
ret = copy_from_user(relocs, to_user_ptr(args->relocs),
args->nr_relocs * sizeof(*relocs));
if (ret) {
ret = -EFAULT;
goto err_submit_cmds;
}
ret = copy_from_user(stream, to_user_ptr(args->stream),
args->stream_size);
if (ret) {
ret = -EFAULT;
goto err_submit_cmds;
}
submit = submit_create(dev, gpu, args->nr_bos);
if (!submit) {
ret = -ENOMEM;
goto err_submit_cmds;
}
ret = submit_lookup_objects(submit, file, bos, args->nr_bos);
if (ret)
goto err_submit_objects;
ret = submit_lock_objects(submit);
if (ret)
goto err_submit_objects;
if (!etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4,
relocs, args->nr_relocs)) {
ret = -EINVAL;
goto err_submit_objects;
}
ret = submit_fence_sync(submit);
if (ret)
goto err_submit_objects;
ret = submit_pin_objects(submit);
if (ret)
goto out;
ret = submit_reloc(submit, stream, args->stream_size / 4,
relocs, args->nr_relocs);
if (ret)
goto out;
memcpy(cmdbuf->vaddr, stream, args->stream_size);
cmdbuf->user_size = ALIGN(args->stream_size, 8);
ret = etnaviv_gpu_submit(gpu, submit, cmdbuf);
if (ret == 0)
cmdbuf = NULL;
args->fence = submit->fence;
out:
submit_unpin_objects(submit);
/*
* If we're returning -EAGAIN, it may be due to the userptr code
* wanting to run its workqueue outside of any locks. Flush our
* workqueue to ensure that it is run in a timely manner.
*/
if (ret == -EAGAIN)
flush_workqueue(priv->wq);
err_submit_objects:
submit_cleanup(submit);
err_submit_cmds:
/* if we still own the cmdbuf */
if (cmdbuf)
etnaviv_gpu_cmdbuf_free(cmdbuf);
if (stream)
drm_free_large(stream);
if (bos)
drm_free_large(bos);
if (relocs)
drm_free_large(relocs);
return ret;
}

1644
drivers/gpu/drm/etnaviv/etnaviv_gpu.c Normal file
View file

File diff suppressed because it is too large Load diff

209
drivers/gpu/drm/etnaviv/etnaviv_gpu.h Normal file
View file

@ -0,0 +1,209 @@
/*
* Copyright (C) 2015 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ETNAVIV_GPU_H__
#define __ETNAVIV_GPU_H__
#include <linux/clk.h>
#include <linux/regulator/consumer.h>
#include "etnaviv_drv.h"
struct etnaviv_gem_submit;
struct etnaviv_chip_identity {
/* Chip model. */
u32 model;
/* Revision value.*/
u32 revision;
/* Supported feature fields. */
u32 features;
/* Supported minor feature fields. */
u32 minor_features0;
/* Supported minor feature 1 fields. */
u32 minor_features1;
/* Supported minor feature 2 fields. */
u32 minor_features2;
/* Supported minor feature 3 fields. */
u32 minor_features3;
/* Number of streams supported. */
u32 stream_count;
/* Total number of temporary registers per thread. */
u32 register_max;
/* Maximum number of threads. */
u32 thread_count;
/* Number of shader cores. */
u32 shader_core_count;
/* Size of the vertex cache. */
u32 vertex_cache_size;
/* Number of entries in the vertex output buffer. */
u32 vertex_output_buffer_size;
/* Number of pixel pipes. */
u32 pixel_pipes;
/* Number of instructions. */
u32 instruction_count;
/* Number of constants. */
u32 num_constants;
/* Buffer size */
u32 buffer_size;
};
struct etnaviv_event {
bool used;
struct fence *fence;
};
struct etnaviv_cmdbuf;
struct etnaviv_gpu {
struct drm_device *drm;
struct device *dev;
struct mutex lock;
struct etnaviv_chip_identity identity;
struct etnaviv_file_private *lastctx;
bool switch_context;
/* 'ring'-buffer: */
struct etnaviv_cmdbuf *buffer;
/* bus base address of memory */
u32 memory_base;
/* event management: */
struct etnaviv_event event[30];
struct completion event_free;
spinlock_t event_spinlock;
/* list of currently in-flight command buffers */
struct list_head active_cmd_list;
u32 idle_mask;
/* Fencing support */
u32 next_fence;
u32 active_fence;
u32 completed_fence;
u32 retired_fence;
wait_queue_head_t fence_event;
unsigned int fence_context;
spinlock_t fence_spinlock;
/* worker for handling active-list retiring: */
struct work_struct retire_work;
void __iomem *mmio;
int irq;
struct etnaviv_iommu *mmu;
/* Power Control: */
struct clk *clk_bus;
struct clk *clk_core;
struct clk *clk_shader;
/* Hang Detction: */
#define DRM_ETNAVIV_HANGCHECK_PERIOD 500 /* in ms */
#define DRM_ETNAVIV_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_ETNAVIV_HANGCHECK_PERIOD)
struct timer_list hangcheck_timer;
u32 hangcheck_fence;
u32 hangcheck_dma_addr;
struct work_struct recover_work;
};
struct etnaviv_cmdbuf {
/* device this cmdbuf is allocated for */
struct etnaviv_gpu *gpu;
/* user context key, must be unique between all active users */
struct etnaviv_file_private *ctx;
/* cmdbuf properties */
void *vaddr;
dma_addr_t paddr;
u32 size;
u32 user_size;
/* fence after which this buffer is to be disposed */
struct fence *fence;
/* target exec state */
u32 exec_state;
/* per GPU in-flight list */
struct list_head node;
/* BOs attached to this command buffer */
unsigned int nr_bos;
struct etnaviv_gem_object *bo[0];
};
static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data)
{
etnaviv_writel(data, gpu->mmio + reg);
}
static inline u32 gpu_read(struct etnaviv_gpu *gpu, u32 reg)
{
return etnaviv_readl(gpu->mmio + reg);
}
static inline bool fence_completed(struct etnaviv_gpu *gpu, u32 fence)
{
return fence_after_eq(gpu->completed_fence, fence);
}
static inline bool fence_retired(struct etnaviv_gpu *gpu, u32 fence)
{
return fence_after_eq(gpu->retired_fence, fence);
}
int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value);
int etnaviv_gpu_init(struct etnaviv_gpu *gpu);
#ifdef CONFIG_DEBUG_FS
int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
#endif
int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj,
unsigned int context, bool exclusive);
void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
u32 fence, struct timespec *timeout);
int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout);
int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf);
struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu,
u32 size, size_t nr_bos);
void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
extern struct platform_driver etnaviv_gpu_driver;
#endif /* __ETNAVIV_GPU_H__ */

240
drivers/gpu/drm/etnaviv/etnaviv_iommu.c Normal file
View file

@ -0,0 +1,240 @@
/*
* Copyright (C) 2014 Christian Gmeiner <christian.gmeiner@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/iommu.h>
#include <linux/platform_device.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#include <linux/dma-mapping.h>
#include <linux/bitops.h>
#include "etnaviv_gpu.h"
#include "etnaviv_mmu.h"
#include "etnaviv_iommu.h"
#include "state_hi.xml.h"
#define PT_SIZE SZ_2M
#define PT_ENTRIES (PT_SIZE / sizeof(u32))
#define GPU_MEM_START 0x80000000
struct etnaviv_iommu_domain_pgtable {
u32 *pgtable;
dma_addr_t paddr;
};
struct etnaviv_iommu_domain {
struct iommu_domain domain;
struct device *dev;
void *bad_page_cpu;
dma_addr_t bad_page_dma;
struct etnaviv_iommu_domain_pgtable pgtable;
spinlock_t map_lock;
};
static struct etnaviv_iommu_domain *to_etnaviv_domain(struct iommu_domain *domain)
{
return container_of(domain, struct etnaviv_iommu_domain, domain);
}
static int pgtable_alloc(struct etnaviv_iommu_domain_pgtable *pgtable,
size_t size)
{
pgtable->pgtable = dma_alloc_coherent(NULL, size, &pgtable->paddr, GFP_KERNEL);
if (!pgtable->pgtable)
return -ENOMEM;
return 0;
}
static void pgtable_free(struct etnaviv_iommu_domain_pgtable *pgtable,
size_t size)
{
dma_free_coherent(NULL, size, pgtable->pgtable, pgtable->paddr);
}
static u32 pgtable_read(struct etnaviv_iommu_domain_pgtable *pgtable,
unsigned long iova)
{
/* calcuate index into page table */
unsigned int index = (iova - GPU_MEM_START) / SZ_4K;
phys_addr_t paddr;
paddr = pgtable->pgtable[index];
return paddr;
}
static void pgtable_write(struct etnaviv_iommu_domain_pgtable *pgtable,
unsigned long iova, phys_addr_t paddr)
{
/* calcuate index into page table */
unsigned int index = (iova - GPU_MEM_START) / SZ_4K;
pgtable->pgtable[index] = paddr;
}
static int __etnaviv_iommu_init(struct etnaviv_iommu_domain *etnaviv_domain)
{
u32 *p;
int ret, i;
etnaviv_domain->bad_page_cpu = dma_alloc_coherent(etnaviv_domain->dev,
SZ_4K,
&etnaviv_domain->bad_page_dma,
GFP_KERNEL);
if (!etnaviv_domain->bad_page_cpu)
return -ENOMEM;
p = etnaviv_domain->bad_page_cpu;
for (i = 0; i < SZ_4K / 4; i++)
*p++ = 0xdead55aa;
ret = pgtable_alloc(&etnaviv_domain->pgtable, PT_SIZE);
if (ret < 0) {
dma_free_coherent(etnaviv_domain->dev, SZ_4K,
etnaviv_domain->bad_page_cpu,
etnaviv_domain->bad_page_dma);
return ret;
}
for (i = 0; i < PT_ENTRIES; i++)
etnaviv_domain->pgtable.pgtable[i] =
etnaviv_domain->bad_page_dma;
spin_lock_init(&etnaviv_domain->map_lock);
return 0;
}
static void etnaviv_domain_free(struct iommu_domain *domain)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
pgtable_free(&etnaviv_domain->pgtable, PT_SIZE);
dma_free_coherent(etnaviv_domain->dev, SZ_4K,
etnaviv_domain->bad_page_cpu,
etnaviv_domain->bad_page_dma);
kfree(etnaviv_domain);
}
static int etnaviv_iommuv1_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
if (size != SZ_4K)
return -EINVAL;
spin_lock(&etnaviv_domain->map_lock);
pgtable_write(&etnaviv_domain->pgtable, iova, paddr);
spin_unlock(&etnaviv_domain->map_lock);
return 0;
}
static size_t etnaviv_iommuv1_unmap(struct iommu_domain *domain,
unsigned long iova, size_t size)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
if (size != SZ_4K)
return -EINVAL;
spin_lock(&etnaviv_domain->map_lock);
pgtable_write(&etnaviv_domain->pgtable, iova,
etnaviv_domain->bad_page_dma);
spin_unlock(&etnaviv_domain->map_lock);
return SZ_4K;
}
static phys_addr_t etnaviv_iommu_iova_to_phys(struct iommu_domain *domain,
dma_addr_t iova)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
return pgtable_read(&etnaviv_domain->pgtable, iova);
}
static size_t etnaviv_iommuv1_dump_size(struct iommu_domain *domain)
{
return PT_SIZE;
}
static void etnaviv_iommuv1_dump(struct iommu_domain *domain, void *buf)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
memcpy(buf, etnaviv_domain->pgtable.pgtable, PT_SIZE);
}
static struct etnaviv_iommu_ops etnaviv_iommu_ops = {
.ops = {
.domain_free = etnaviv_domain_free,
.map = etnaviv_iommuv1_map,
.unmap = etnaviv_iommuv1_unmap,
.iova_to_phys = etnaviv_iommu_iova_to_phys,
.pgsize_bitmap = SZ_4K,
},
.dump_size = etnaviv_iommuv1_dump_size,
.dump = etnaviv_iommuv1_dump,
};
void etnaviv_iommu_domain_restore(struct etnaviv_gpu *gpu,
struct iommu_domain *domain)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
u32 pgtable;
/* set page table address in MC */
pgtable = (u32)etnaviv_domain->pgtable.paddr;
gpu_write(gpu, VIVS_MC_MMU_FE_PAGE_TABLE, pgtable);
gpu_write(gpu, VIVS_MC_MMU_TX_PAGE_TABLE, pgtable);
gpu_write(gpu, VIVS_MC_MMU_PE_PAGE_TABLE, pgtable);
gpu_write(gpu, VIVS_MC_MMU_PEZ_PAGE_TABLE, pgtable);
gpu_write(gpu, VIVS_MC_MMU_RA_PAGE_TABLE, pgtable);
}
struct iommu_domain *etnaviv_iommu_domain_alloc(struct etnaviv_gpu *gpu)
{
struct etnaviv_iommu_domain *etnaviv_domain;
int ret;
etnaviv_domain = kzalloc(sizeof(*etnaviv_domain), GFP_KERNEL);
if (!etnaviv_domain)
return NULL;
etnaviv_domain->dev = gpu->dev;
etnaviv_domain->domain.type = __IOMMU_DOMAIN_PAGING;
etnaviv_domain->domain.ops = &etnaviv_iommu_ops.ops;
etnaviv_domain->domain.geometry.aperture_start = GPU_MEM_START;
etnaviv_domain->domain.geometry.aperture_end = GPU_MEM_START + PT_ENTRIES * SZ_4K - 1;
ret = __etnaviv_iommu_init(etnaviv_domain);
if (ret)
goto out_free;
return &etnaviv_domain->domain;
out_free:
kfree(etnaviv_domain);
return NULL;
}

28
drivers/gpu/drm/etnaviv/etnaviv_iommu.h Normal file
View file

@ -0,0 +1,28 @@
/*
* Copyright (C) 2014 Christian Gmeiner <christian.gmeiner@gmail.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ETNAVIV_IOMMU_H__
#define __ETNAVIV_IOMMU_H__
#include <linux/iommu.h>
struct etnaviv_gpu;
struct iommu_domain *etnaviv_iommu_domain_alloc(struct etnaviv_gpu *gpu);
void etnaviv_iommu_domain_restore(struct etnaviv_gpu *gpu,
struct iommu_domain *domain);
struct iommu_domain *etnaviv_iommu_v2_domain_alloc(struct etnaviv_gpu *gpu);
#endif /* __ETNAVIV_IOMMU_H__ */

Some files were not shown because too many files have changed in this diff Show more